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All Vocabulary Cards All Vocabularies
B1 adjective /əˈrɪdʒ.ɪ.nəl/

Original

original; primär; authentisch
Meaning
first; fundamental; primary; authentic
Example
This is the original document, not a copy.
Dies ist das Originaldokument, keine Kopie.
C1 verb /ˈɔːstrəˌsaɪz/

ostracize

ostracisieren
Meaning
to exclude someone from a group or society; to banish or shun
Example
After the scandal, he was ostracized by his former colleagues.
Nach dem Skandal wurde er von seinen ehemaligen Kollegen ostracized.
B2 verb /ˌoʊvərˈlʊk/

overlook

übersehen
Meaning
to fail to notice or consider something; to have a view from above
Example
It's easy to overlook small details when you're in a hurry.
Es ist einfach, kleine Details zu übersehen, wenn man in Eile ist.
B2 verb /əˈpoʊz/

oppose

opponieren
Meaning
to disagree with or resist; to act against
Example
Many citizens oppose the new tax policy.
Viele Bürger opponieren gegen die neue Steuerpolitik.
B2 noun/verb /ˌoʊvərˈlæp/

overlap

Überlappung
Meaning
To extend over and cover partly; an area where things coincide.
Example
The two meetings overlap by an hour.
Die beiden Besprechungen überlappen sich um eine Stunde.
C2 noun /ˈoʊdiəm/

odium

Abscheu
Meaning
general or widespread hatred or disgust directed toward someone as a result of their actions
Example
The scandal brought public odium on the corrupt minister.
Der Skandal brachte öffentliches Odium auf den korrupten Minister.
B2 noun /əˌrɪʒ.əˈnæl.ə.ti/

Originality

Originalität
Meaning
the quality of being novel or unusual; the ability to think independently and creatively
Example
The artist's work showed great originality and creativity.
Das Werk des Künstlers zeigte große Originalität und Kreativität.
B2 noun /ˈɒkjʊpənt/

occupant

insasse
Meaning
A person who resides in or is present in a house, vehicle, seat, or place.
Example
The car had three occupants at the time of the accident.
Das Auto hatte drei Insassen zum Zeitpunkt des Unfalls.
A2 adverb; noun /ˌaʊtˈdɔːrz/

outdoors

draußen; im Freien
Meaning
outside a building; the natural environment outside
Example
We spent the whole afternoon outdoors enjoying the fresh air.
Wir verbrachten den ganzen Nachmittag draußen und genossen die frische Luft.
C1 noun /ˌɒk.sɪ.dʒɪˈneɪ.ʃən/

oxygenation

Sauerstoffversorgung oder -behandlung
Meaning
The process of supplying or treating with oxygen.
Example
Deep breathing exercises improve oxygenation of the body.
Tiefenatmungsübungen verbessern die Sauerstoffversorgung des Körpers.
C1 adjective /ˈɔːrdɪnəl/

ordinal

ordinal
Meaning
Relating to the order or position of something in a sequence (first, second, third, etc.).
Example
The ordinal number 'third' indicates position in a sequence.
Die Ordinalzahl 'dritte' zeigt die Position in einer Sequenz an.
B2 noun /ˈɔr.fən.ɪʒ/

Orphanage

Waisenhaus
Meaning
an institution for the care and education of children who have lost their parents
Example
The charity built a new orphanage for homeless children.
Die Wohltätigkeitsorganisation baute ein neues Waisenhaus für obdachlose Kinder.
C1 noun /ˈɒktəɡən/

octagon

Acht-Eck
Meaning
A polygon with eight sides and eight angles.
Example
The stop sign is shaped like an octagon.
Das Stoppschild hat die Form eines Achtecks.
A1 verb, adjective /oʊn/

own

besitzen
Meaning
to possess something; belonging to oneself
Example
She owns a beautiful house in the city.
Sie besitzt ein schönes Haus in der Stadt.
B2 verb /ˌoʊvərˈpeɪ/

overpay

überbezahlen
Meaning
To pay more than is necessary or reasonable.
Example
She realized she had overpaid for the concert tickets.
Sie erkannte, dass sie für die Konzertkarten zu viel bezahlt hatte.
C2 adjective /ˈoʊ.pən ˈhɑrt.ɪd/

Open-hearted

offenherzig; großzügig und aufrichtig; herzlich empfangend;
Meaning
Kind and generous; sincere and honest; warmly receptive;
Example
She welcomed the strangers with an open-hearted smile and invited them for dinner.
Sie begrüßte die Fremden mit einem offenen Lächeln und lud sie zum Abendessen ein.
C1 adjective /əˈprɛs.ɪv/

Oppressive

unterdrückend
Meaning
Harsh and authoritarian; overwhelming; causing distress; tyrannical;
Example
The oppressive heat made it difficult to work outside during the summer.
Die drückende Hitze erschwerte die Arbeit im Freien während des Sommers.
C2 adjective /ˈəʊ.dər.əs/

Odorous

duftend; aromatisch
Meaning
having a strong smell; fragrant; aromatic
Example
The garden was filled with odorous flowers.
Der Garten war voller duftender Blumen.
B2 adverb /ˈəʊvəli/

overly

übermäßig
Meaning
to an excessive degree or extent
Example
She was overly concerned about the results.
Sie war übermäßig besorgt über die Ergebnisse.
C2 adjective /əˈrækjələr/

oracular

orakular
Meaning
Resembling an oracle; giving wise, mysterious, or prophetic statements
Example
Her oracular words left the audience deep in thought.
Ihre orakularen Worte ließen das Publikum tief nachdenken.
B2 adjective /ˌfæʃ.ənd/

Outdated

veraltet
Meaning
obsolete; no longer current
Example
This computer software is completely outdated.
Diese Software ist vollständig veraltet.
C1 adjective /ˌɒstɛnˈteɪʃəs/

ostentatious

protzig
Meaning
Characterized by a showy or pretentious display intended to impress others.
Example
He wore an ostentatious gold chain to the party.
Er trug eine protzige goldene Kette zur Party.
C2 adjective /ˈɑːbdjʊrət/

obdurate

unbeugsam
Meaning
Stubbornly refusing to change one's opinion or course of action.
Example
He remained obdurate despite everyone's pleas.
Er blieb unbeugsam trotz aller Bitten.
C1 verb /ˌaʊtˈstrɛtʃ/

outstretch

ausstrecken
Meaning
To extend or stretch something outward.
Example
He outstretched his hand to help her up.
Er streckte seine Hand aus, um ihr zu helfen.
B2 adjective, verb /əbˈskjʊr/

obscure

dunkel
Meaning
Not clearly expressed or understood; to make something difficult to see or understand.
Example
The meaning of the poem was obscure to most readers.
Die Bedeutung des Gedichts war für die meisten Leser unklar.
B2 noun/verb /ˈoʊvərˌdoʊs/

overdose

überdosis
Meaning
An excessive and dangerous amount of a drug; to take too much of a substance.
Example
He was rushed to the hospital after a drug overdose.
Er wurde nach einer Drogenüberdosis ins Krankenhaus eingeliefert.
C2 verb /ˈɑːbdʒərˌɡeɪt/

objurgate

heftig schimpfen
Meaning
to scold or rebuke severely
Example
The teacher objurgated the student for being dishonest.
Der Lehrer schimpfte mit dem Schüler, weil er unehrlich war.
A2 noun /ɔɪl/

Oil

Öl
Meaning
a viscous liquid derived from petroleum or plants, used for cooking or fuel
Example
Heat the oil in a pan before adding the vegetables.
Erhitze das Öl in einer Pfanne, bevor du das Gemüse hinzufügst.
B2 noun /əbˈdʒek.ʃən/

Objection

Einwand; Protest; Widerspruch;
Meaning
an expression of disagreement or disapproval; a reason for disagreeing
Example
The lawyer raised an objection during the trial.
Der Anwalt erhob während des Prozesses Einspruch.
B2 verb /ˌoʊvərˈloʊd/

overload

überladen
Meaning
to load with too much weight or cargo; to give too much work or information
Example
Don't overload the washing machine or it might break down.
Überlade die Waschmaschine nicht, sonst könnte sie kaputt gehen.
B1 adjective /əˈfɪʃəl/

official

offiziell
Meaning
relating to or connected with an authority or public office
Example
He is the official spokesperson for the company.
Er ist der offizielle Sprecher des Unternehmens.
C1 verb /ˈɒfsɛt/

offset

ausgleichen
Meaning
To counterbalance or compensate for something.
Example
The company's losses were offset by gains in other departments.
Die Verluste des Unternehmens wurden durch Gewinne in anderen Abteilungen ausgeglichen.
C2 verb /aʊtˈraɪd/

outride

überholen
Meaning
to ride faster, farther, or better than someone else
Example
The young rider managed to outride his competitors in the race.
Der junge Reiter konnte seine Mitbewerber im Rennen überholen.
C1 noun /oʊˈmɪʃ.ən/

Omission

Auslassung; Unterlassung
Meaning
the action of excluding or leaving out someone or something; a failure to include
Example
The omission of his name from the list was intentional.
Die Auslassung seines Namens von der Liste war absichtlich.
B2 noun /ˈɑp.tə.mɪst/

Optimist

Optimist
Meaning
a person who tends to be hopeful and confident about the future; someone who sees the good side of things
Example
As an optimist, she always believed things would improve.
Als Optimist glaubte sie immer, dass sich die Dinge verbessern würden.
C2 noun /ˈɔːrdʒi/

orgy

Orgie
Meaning
A wild party involving excessive indulgence, especially of a sexual nature.
Example
The novel described a scandalous orgy in a wealthy mansion.
Der Roman beschrieb eine skandalöse Orgie in einer wohlhabenden Villa.
B2 noun /ˈɒp.tɪ.mɪ.zəm/

optimism

Optimismus
Meaning
Hopefulness and confidence about the future or the successful outcome of something.
Example
Her optimism helped her overcome difficult times.
Ihr Optimismus half ihr, schwierige Zeiten zu überstehen.
B1 noun /ˌɒp.əˈtjuː.nə.ti/

opportunity

Gelegenheit
Meaning
A favorable chance or set of circumstances that makes it possible to do something.
Example
She seized the opportunity to study abroad.
Sie ergriff die Gelegenheit, im Ausland zu studieren.
C1 adjective /ˌoʊvərˈbloʊn/

overblown

übertrieben
Meaning
excessively exaggerated or inflated
Example
The controversy was overblown by the media.
Die Kontroverse wurde von den Medien übertrieben dargestellt.
B1 noun əbˈdʒek.tɪv

objective

ziel
Meaning
A thing aimed at or sought; a goal.
Example
The main objective is to test sustainability.
Das Hauptziel ist es, die Nachhaltigkeit zu testen.
B2 noun /ˈaʊtɪŋ/

outing

Ausflug
Meaning
a short trip or excursion, often for leisure or enjoyment
Example
They had a lovely outing at the beach last weekend.
Sie hatten einen schönen Ausflug zum Strand am letzten Wochenende.
A1 preposition, adverb /ˈoʊvər/

over

über
Meaning
across, on top of, or beyond
Example
The book is lying over the table.
Das Buch liegt über dem Tisch.
B1 adjective /ˈɔːɡənaɪzd/

organized

organisiert
Meaning
Arranged in a systematic way, especially on a large scale.
Example
An organized approach to work increases productivity and reduces stress.
Ein gut organisierter Ansatz bei der Arbeit erhöht die Produktivität und reduziert Stress.
B2 noun /ˈɒs.trɪtʃ/

Ostrich

Strauss
Meaning
a large flightless bird native to Africa with long legs and neck
Example
The ostrich is the world's largest bird.
Der Strauss ist der größte Vogel der Welt.
C1 noun /əbˈzɜːvəns/

observance

Beachtung
Meaning
The practice of following a custom, rule, or religious law.
Example
The festival is held in observance of a centuries-old tradition.
Das Festival wird zur Beachtung einer jahrhundertealten Tradition abgehalten.
C1 adjective /ˌɔː.riˈen.təl/

Oriental

bezogen auf die Länder Ostasiens; orientalisch
Meaning
relating to the countries of East Asia; eastern
Example
The museum has a beautiful collection of oriental art.
Das Museum hat eine schöne Sammlung orientalischer Kunst.
C2 adjective /ˈɒf.biːt/

offbeat

ungewöhnlich
Meaning
Unusual, unconventional, or different from the norm.
Example
She has a very offbeat sense of humor.
Sie hat einen sehr ungewöhnlichen Sinn für Humor.
C2 noun /ˈoʊ.vər.let/

Overlet

Topper
Meaning
a thin mattress or pad placed over a bed for additional comfort
Example
The overlet makes the bed more comfortable to sleep on.
Der Topper macht das Bett bequemer zum Schlafen.
C2 noun /ɔːˈreɪʃən/

oration

Ansprache
Meaning
A formal speech, especially one given on a ceremonial occasion
Example
The president delivered an inspiring oration.
Der Präsident hielt eine inspirierende Ansprache.
B2 noun ˈoʊzoʊn dɪˈpliʃən

ozone depletion

Ozonabbau
Meaning
The reduction in the amount of ozone in the Earth's stratosphere, leading to increased UV radiation.
Example
Ozone depletion increases UV radiation.
Ozonabbau erhöht die UV-Strahlung.
B1 verb /əˈkɜːr/

occur

auftreten
Meaning
to happen or take place; to be found or present
Example
The accident occurred at the intersection during rush hour.
Der Unfall trat an der Kreuzung während der Stoßzeit auf.
C1 noun əˈblɪv.i.ən

oblivion

Vergessenheit, Zerstörung, Verschwinden
Meaning
The state of being unaware or unconscious of what is happening; complete forgetfulness.
Example
His name faded into oblivion over time.
Sein Name verschwand mit der Zeit in der Vergessenheit.
C2 verb /ˈɑːblɪˌɡeɪt/

obligate

verpflichten
Meaning
to bind legally or morally; to compel someone to do something
Example
The contract obligates the company to provide timely service.
Der Vertrag verpflichtet das Unternehmen, rechtzeitig Service zu leisten.
C1 verb ˈɔːr.kɪ.streɪt

orchestrate

koordiniert
Meaning
To plan or coordinate the elements of (a situation) to produce a desired effect, especially surreptitiously.
Example
He skillfully orchestrated the entire event.
Er hat das gesamte Event geschickt orchestriert.
C1 verb /ˌoʊvərˈʃædoʊ/

overshadow

überschatten
Meaning
to appear more important or significant than something else, reducing its impact
Example
The scandal overshadowed his achievements.
Der Skandal überschattete seine Erfolge.
C2 noun /oʊˈbeɪsəns/

obeisance

Ehrerbietung
Meaning
A gesture of respect such as a bow or curtsy.
Example
They bowed in obeisance to the king.
Sie verbeugten sich in Ehrerbietung vor dem König.
C2 noun /əˈprəʊ.bri.əm/

opprobrium

Verachtung, Schande
Meaning
Harsh criticism or public disgrace.
Example
The scandal brought opprobrium on the politician.
Der Skandal brachte Verachtung für den Politiker.
A2 noun /ˈʌn.jən/

Onion

Zwiebel
Meaning
a round vegetable with a strong taste and smell, made up of many layers
Example
I need to chop some onions for the curry recipe.
Ich muss einige Zwiebeln für das Curry-Rezept hacken.
B1 adjective /əˈbiː.di.ənt/

Obedient

gehorsam
Meaning
willing to comply with orders or instructions; submissive
Example
The obedient student always follows the teacher's instructions.
Der gehorsame Schüler folgt immer den Anweisungen des Lehrers.
B2 noun /ˈaʊtlet/

outlet

Auslass
Meaning
a means by which something is released, expressed, or distributed
Example
Art is a great outlet for emotions.
Kunst ist ein großartiger Auslass für Emotionen.
A2 preposition /ˈɒntu/

onto

auf
Meaning
moving to a position on the surface of something
Example
She jumped onto the table to get the book.
Sie sprang auf den Tisch, um das Buch zu holen.
B2 noun ˈəʊnəʃɪp

ownership

Eigentum
Meaning
The act, state, or right of possessing something; legal title to something.
Example
Ownership of resources was crucial.
Das Eigentum an Ressourcen war entscheidend.
C1 adjective /ˈɒptɪk/

optic

optisch
Meaning
Relating to the eye or vision.
Example
The optic nerve carries signals from the eye to the brain.
Der optische Nerv überträgt Signale vom Auge zum Gehirn.
B2 adjective /ˈaʊtˌɡoʊɪŋ/

outgoing

gesellig
Meaning
Friendly and sociable; inclined to mix with others.
Example
He is an outgoing person who loves meeting new people.
Er ist eine gesellige Person, die es liebt, neue Leute zu treffen.
C1 verb /ˌoʊvərˈθroʊ/

overthrow

Glück
Meaning
To remove a leader or government from power, often by force.
Example
The rebels planned to overthrow the corrupt regime.
Sie konnte ihr Glück nicht verbergen, als sie den Preis erhielt.
C2 adjective /ˈoʊdiəs/

odious

abscheulich
Meaning
extremely unpleasant or repulsive
Example
The dictator was remembered for his odious crimes.
Der Diktator wurde für seine abscheulichen Verbrechen erinnert.
B2 verb /ˌoʊvərˈwɛlm/

overwhelm

überwältigen
Meaning
to overpower someone emotionally or physically; to be too much to handle
Example
She was overwhelmed with gratitude after receiving the help.
Sie war überwältigt von Dankbarkeit, nachdem sie die Hilfe erhalten hatte.
C1 adjective /ˌɔːrθəˈpiːdɪk/

orthopedic

bezieht sich auf die Korrektur von Knochen- oder Muskelverformungen
Meaning
Relating to the correction of deformities of bones or muscles.
Example
She visited an orthopedic surgeon for her back pain.
Sie besuchte einen orthopädischen Chirurgen wegen ihrer Rückenschmerzen.
B2 adjective /ˌɑːp.təˈmɪs.tɪk/

optimistic

optimistisch
Meaning
hopeful and confident about the future
Example
She is optimistic about the success of her new project.
Sie ist optimistisch über den Erfolg ihres neuen Projekts.
C1 adjective /əbˈstrʌk.tɪv/

Obstructive

hemmend
Meaning
deliberately creating difficulties or preventing progress; hindering or blocking something
Example
The obstructive policies hindered economic growth.
Die hemmenden Maßnahmen behinderten das Wirtschaftswachstum.
C1 adjective /ˈɔːrθədɑːks/

orthodox

orthodox
Meaning
conforming to traditional beliefs or practices
Example
He comes from a very orthodox family.
Er stammt aus einer sehr orthodoxen Familie.
C2 noun /əbˈstɛtrɪks/

obstetrics

Geburtskunde
Meaning
The branch of medicine dealing with childbirth and care of women giving birth.
Example
She is studying obstetrics to become a specialist in childbirth.
Sie studiert Geburtskunde, um eine Spezialistin für Geburtshilfe zu werden.
C2 verb /oʊˈpaɪn/

opine

eine Meinung äußern
Meaning
to express an opinion or belief
Example
The professor opined that the policy would fail.
Der Professor äußerte die Meinung, dass die Politik scheitern würde.
C2 adjective /əbˈstrɛpərəs/

obstreperous

laut und schwer zu kontrollieren
Meaning
Noisy and difficult to control.
Example
The obstreperous students disrupted the class.
Die lauten Studenten störten die Klasse.
B1 noun /ˈɑp.ʃən/

Option

Option
Meaning
a thing that is or may be chosen; an alternative course of action
Example
You have the option to work from home or office.
Du hast die Option, von zu Hause oder im Büro zu arbeiten.
B2 adjective; verb (past participle) /ˈɒkjʊpaɪd/

occupied

besetzt; belegt
Meaning
being in use or taken; filled or lived in; controlled or held by force
Example
The room is occupied, so please wait outside.
Das Zimmer ist besetzt, bitte warten Sie draußen.
C2 noun /ˈɔːrzmən/

Oarsman

Ruderer
Meaning
a person who rows a boat, especially as a member of a racing crew
Example
The experienced oarsman rowed the boat across the river.
Der erfahrene Ruderer ruderte das Boot über den Fluss.
A2 verb /ˈɔːfər/

offer

anbieten
Meaning
to present something for acceptance or rejection; to propose
Example
She offered to help with the project.
Sie bot an, bei dem Projekt zu helfen.
C1 adjective /oʊˈvɜːrt/

overt

offen
Meaning
Done or shown openly; not hidden or secret.
Example
There was an overt display of hostility between the rivals.
Es gab eine offene Darstellung von Feindseligkeit zwischen den Rivalen.
C2 adjective /əˈfɪʃəs/

officious

aufdringlich
Meaning
Excessively eager to offer unwanted help or advice; meddlesome.
Example
The officious guard kept interrupting the visitors with unnecessary instructions.
Der aufdringliche Wächter unterbrach die Besucher mit unnötigen Anweisungen.
C1 verb /ˌoʊvərˈruːl/

overrule

aufheben
Meaning
to reject or disallow by exercising one's superior authority; to override a decision
Example
The judge overruled the objection from the defense attorney.
Der Richter hob den Einspruch des Verteidigers auf.
A2 noun /ˈɒf.ɪs/

office

Büro
Meaning
a room or building where people work, usually at desks
Example
She left the office early to attend a family event.
Sie verließ das Büro früh, um an einer Familienveranstaltung teilzunehmen.
A2 noun əˈlɪm.pɪk ɡeɪmz

Olympic Games

olympische spiele
Meaning
The world's largest international sports competition held every four years, bringing together athletes from different countries to compete in various sports.
Example
The Olympic Games bring together the world's top athletes.
Die Olympischen Spiele bringen die besten Athleten der Welt zusammen.
C2 verb /ˌoʊvərˈstraɪd/

overstride

mit großen Schritten überqueren
Meaning
To stride over something; to step across with long steps.
Example
He managed to overstride the narrow stream with ease.
Er schaffte es, den engen Bach mit Leichtigkeit zu überqueren.
A2 noun /əˈlɪmpɪks/

olympics

Olympische Spiele
Meaning
an international sports competition held every four years with athletes from many countries
Example
The Olympics bring athletes from all over the world together.
Die Olympischen Spiele bringen Athleten aus der ganzen Welt zusammen.
C2 adjective /ɔːrˈθɑːɡənl/

orthogonal

orthogonal
Meaning
at right angles; independent or unrelated
Example
In mathematics, two vectors are orthogonal if their dot product is zero.
In der Mathematik sind zwei Vektoren orthogonal, wenn ihr Skalarprodukt null ist.
C2 adjective /ɑːlˈfæktəri/

olfactory

olfaktorisch
Meaning
Relating to the sense of smell.
Example
The perfume activated her olfactory nerves immediately.
Das Parfüm aktivierte sofort ihre Riechnerven.
C1 noun /əˈpreʃ.ən/

Oppression

Unterdrückung; Misshandlung; Tyrannei;
Meaning
cruel or unjust treatment or exercise of authority; the state of being subject to harsh treatment
Example
The people fought against political oppression.
Die Menschen kämpften gegen politische Unterdrückung.
C1 adjective/adverb /ˌɒfˈhænd/

offhand

unüberlegt
Meaning
Without previous thought or preparation; casual and sometimes dismissive.
Example
She gave an offhand reply to his serious question.
Sie gab eine unüberlegte Antwort auf seine ernsthafte Frage.
B1 adjective /ˈaʊtər/

outer

äußeren
Meaning
situated on or toward the outside; external
Example
The outer layer of the jacket is waterproof.
Die äußere Schicht der Jacke ist wasserdicht.
C2 noun ˌɒbfəsˈkeɪʃən

obfuscation

Obfuskation, Verwirrung
Meaning
The action of making something obscure, unclear, or unintelligible.
Example
The obfuscation of the data made it difficult to interpret.
Die Obfuskation der Daten erschwerte deren Interpretation.
A1 adverb /ɔːf/

off

aus
Meaning
away from a place, position, or time; not functioning
Example
He turned off the light before leaving the room.
Er schaltete das Licht aus, bevor er den Raum verließ.
C2 verb /ˈɑːbvieɪt/

obviate

beseitigen
Meaning
To remove a need or difficulty; to prevent or avoid something.
Example
This new system obviates the need for manual data entry.
Dieses neue System beseitigt die Notwendigkeit einer manuellen Dateneingabe.
C2 noun /ˌɒstɛnˈteɪʃən/

ostentation

Prunk
Meaning
excessive display of wealth or knowledge intended to attract admiration or envy
Example
The billionaire’s party was full of ostentation and luxury.
Die Party des Milliardärs war voller Prunk und Luxus.
C1 verb /ˈɒp.tɪ.maɪz/

optimize

optimieren
Meaning
To make the best or most effective use of a situation, opportunity, or resource.
Example
The company is working to optimize its supply chain.
Das Unternehmen arbeitet daran, seine Lieferkette zu optimieren.
C2 noun /ˈɒn.rʌʃ/

onrush

Ansturm
Meaning
A sudden powerful forward or downward rush or flow.
Example
The onrush of water swept away the bridge.
Der Ansturm von Wasser fegte die Brücke fort.
C2 noun /ˈɑːbəlɪsk/

obelisk

obelisk
Meaning
A tall, four-sided, narrow tapering monument with a pyramid-shaped top.
Example
The ancient Egyptians built obelisks to honor their gods.
Die alten Ägypter errichteten Obelisken, um ihre Götter zu ehren.
B1 noun /əˈkeɪ.ʒən/

Occasion

Gelegenheit; besonderer Anlass
Meaning
a particular time or instance of an event; a special celebration
Example
Their wedding was a joyous occasion.
Ihre Hochzeit war eine freudige Gelegenheit.
B2 verb /ˌoʊvərˈduː/

overdo

übertreiben
Meaning
to do something too much; to exaggerate or carry to excess
Example
Don't overdo the exercise on your first day at the gym.
Übertreibe das Training am ersten Tag im Fitnessstudio nicht.
C2 noun /ˈɒlɪv brɑːntʃ/

olive-branch

Olivenzweig
Meaning
A symbol of peace or reconciliation; an offer to end conflict.
Example
He extended an olive-branch to his rival after years of hostility.
Er reichte seinem Rivalen nach Jahren der Feindseligkeit einen Olivenzweig.
C1 adjective /ɒmˈnɪv.ər.əs/

Omnivorous

allesfresser
Meaning
eating both plants and animals; feeding on various kinds of food
Example
Bears are omnivorous animals that eat both plants and meat.
Bären sind allesfressende Tiere, die sowohl Pflanzen als auch Fleisch essen.
B2 noun /ˌɑb.lɪˈɡeɪ.ʃən/

Obligation

verpflichtung
Meaning
a duty or commitment; something that must be done legally or morally
Example
Parents have an obligation to care for their children.
Eltern haben die Verpflichtung, sich um ihre Kinder zu kümmern.
C1 noun /ˈoʊvərˌsiːər/

overseer

Aufseher
Meaning
a person who supervises work or workers; a manager
Example
The overseer made sure the workers followed safety rules.
Der Aufseher stellte sicher, dass die Arbeiter die Sicherheitsregeln befolgten.
B2 noun /ˌaʊtˈsaɪdə(r)/

outsider

Außenseiter
Meaning
a person who is not accepted as a member of a particular group or community
Example
As a new student, she often felt like an outsider at school.
Als neue Studentin fühlte sie sich oft wie eine Außenseiterin in der Schule.
C1 adjective /ˌoʊvərˈrɔt/

overwrought

aufgeregt / übermäßig nervös
Meaning
extremely agitated or nervous; excessively elaborate
Example
She was too overwrought to speak clearly after the accident.
Sie war nach dem Unfall zu aufgeregt, um klar zu sprechen.
C2 noun /ˈɒbsɪkwi/

obsequy

Begräbnisritus
Meaning
A funeral rite, usually used in plural form obsequies.
Example
The village gathered for the obsequy of their beloved teacher.
Das Dorf versammelte sich für das Begräbnisritus ihres geliebten Lehrers.
C1 adjective /ˌɔːrnəˈmɛntl/

ornamental

ornamental
Meaning
Serving as decoration; decorative rather than functional.
Example
The garden was filled with ornamental plants.
Der Garten war mit ornamentalen Pflanzen gefüllt.
B2 noun /ɒdz/

odds

Wahrscheinlichkeit
Meaning
the likelihood or probability of something happening; chances for or against something
Example
The odds of winning the lottery are very low.
Die Chancen, im Lotto zu gewinnen, sind sehr gering.
C1 noun /ˌɑːsɪˈleɪʃən/

oscillation

Oszillation
Meaning
The movement back and forth at a regular speed.
Example
The oscillation of the pendulum controls the clock.
Die Oszillation des Pendels steuert die Uhr.
C1 adjective /aʊtˈmoʊdɪd/

outmoded

veraltet
Meaning
No longer in fashion or useful; outdated.
Example
That old computer is completely outmoded.
Dieser alte Computer ist völlig veraltet.
C2 noun /ɒmˈnɪpətəns/

omnipotence

Omnipotenz
Meaning
The quality of having unlimited power or authority.
Example
Many religions describe God’s omnipotence as absolute.
Viele Religionen beschreiben die Omnipotenz Gottes als absolut.
C1 noun /ˈɔr.i.ənt/

Orient

Orient, insbesondere die Länder Ostasiens
Meaning
the East, especially countries of eastern Asia; to determine one's position or direction
Example
Many spices come from the Orient.
Viele Gewürze kommen aus dem Orient.
C1 noun /ˈɒktɪv/

octave

Oktave
Meaning
A series of eight musical notes, or the interval between one musical pitch and another with double its frequency.
Example
The singer's voice could easily reach the higher octave.
Die Stimme eines Sängers konnte leicht die höhere Oktave erreichen.
C2 noun /ˌɒktədʒəˈnɛəriən/

octogenarian

Oktogenarier
Meaning
A person who is between 80 and 89 years old.
Example
The octogenarian still jogs every morning to stay healthy.
Der Oktogenarier joggt immer noch jeden Morgen, um gesund zu bleiben.
B1 verb /oʊ/

owe

schulden
Meaning
to be under obligation to pay or repay; to be indebted
Example
I owe my success to my parents' support.
Ich schulde meinen Erfolg der Unterstützung meiner Eltern.
C2 adjective /ˈɒpjʊlənt/

opulent

opulent
Meaning
Ostentatiously rich, luxurious, or lavish.
Example
They hosted an opulent wedding with gold decorations.
Sie veranstalteten eine opulente Hochzeit mit goldenen Dekorationen.
C1 adjective /əbˈtjuːs/

Obtuse

dumm; stumpf; langsam zu verstehen
Meaning
annoyingly insensitive or slow to understand; lacking in intelligence or perception
Example
He was being deliberately obtuse about the instructions.
Er war absichtlich obtus bezüglich der Anweisungen.
A1 adjective/adverb /ˈoʊnli/

only

nur
Meaning
without others; solely
Example
He is the only person who knows the secret.
Er ist die einzige Person, die das Geheimnis kennt.
C2 noun ˈoʊʃən ˌstrætɪfɪˈkeɪʃən

ocean stratification

ozeanische stratifikation
Meaning
The formation of layers in ocean water due to differences in density.
Example
Ocean stratification affects marine biodiversity.
Die Ozeanstratifikation beeinflusst die marine Biodiversität.
B2 adverb /ˈaʊtraɪt/

Outright

direkt; vollständig; ohne Vorbehalt
Meaning
completely; directly; without reservation or concealment
Example
She rejected the proposal outright.
Sie lehnte den Vorschlag direkt ab.
C1 noun /əˈfen.dər/

Offender

Straftäter; Gesetzesbrecher
Meaning
a person who commits an illegal act; someone who breaks the law
Example
The young offender was sentenced to community service.
Der junge Straftäter wurde zu gemeinnütziger Arbeit verurteilt.