oxidative
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C1 adjective ˈɒk.sɪ.də.tɪv

oxidative

Mit Oxidation verbunden
Meaning
Related to or caused by oxidation, especially cellular damage from free radicals.
Example
Excess stress can lead to oxidative damage in cells.
Übermäßiger Stress kann oxidativen Schaden in Zellen verursachen.
C2 noun /ɒkˈteɪvoʊ/

octavo

Oktavo (Buchgröße, die durch das Falten eines Blattes in acht Teile entsteht)
Meaning
A size of book page resulting from folding a sheet of paper into eight leaves (sixteen pages).
Example
The old library contained rare octavo editions of Shakespeare.
Die alte Bibliothek enthielt seltene Oktavo-Ausgaben von Shakespeare.
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.
C1 adjective /ˌoʊvərˈbɛrɪŋ/

overbearing

überheblich
Meaning
unpleasantly or arrogantly domineering
Example
His overbearing attitude made everyone uncomfortable.
Seine überhebliche Haltung hat alle unwohl gemacht.
B2 adjective /ˌɔːɡənaɪˈzeɪʃənəl/

organizational

organisatorisch
Meaning
relating to the structure or arrangement of a company or group
Example
He works on improving the organizational structure of the company.
Er arbeitet daran, die organisatorische Struktur des Unternehmens zu verbessern.
B2 noun /ɔːˈræŋ.ʊˌtæŋ/

Orang-Outang

Orang-Utang
Meaning
a large arboreal ape with long reddish hair, long arms, and hooked hands and feet, native to Borneo and Sumatra
Example
The orangutan swings gracefully through the forest canopy.
Der Orang-Utang schwingt anmutig durch das Blätterdach des Waldes.
B2 noun /ˈɒpəreɪtər/

operator

Operator
Meaning
a person who operates equipment, a business, or controls something
Example
The machine operator ensured that everything ran smoothly.
Der Maschinenoperator stellte sicher, dass alles reibungslos lief.
C2 noun /ˈɒkjʊlɪst/

oculist

Augenarzt
Meaning
An old-fashioned term for an eye doctor or ophthalmologist.
Example
The village oculist was known for treating various eye diseases.
Der Oculist des Dorfes war bekannt für die Behandlung verschiedener Augenkrankheiten.
B1 noun /ˈɑː.lɪv/

Olive

Olive
Meaning
a small oval fruit with a hard pit, typically green or black, used for eating or making oil
Example
Olive oil is considered one of the healthiest cooking oils available.
Olivenöl gilt als eines der gesündesten Kochöle, die verfügbar sind.
C2 adjective /ˈɑːsɪˌfaɪd/

ossified

in Knochen verwandelt, starr
Meaning
Turned into bone or become rigid; unwilling to change.
Example
The company had an ossified management structure that resisted innovation.
Das Unternehmen hatte eine starre Managementstruktur, die Innovationen widerstand.
A2 pronoun /aʊərˈsɛlvz/

ourselves

wir selbst
Meaning
used by the speaker to refer to themselves and one or more others as the object of the verb
Example
We should help ourselves before helping others.
Wir sollten uns selbst helfen, bevor wir anderen helfen.
C1 adjective /ˈɒptɪməm/

optimum

optimal
Meaning
Most conducive to a favorable outcome; best.
Example
To achieve optimum results, we need to improve efficiency.
Um optimale Ergebnisse zu erzielen, müssen wir die Effizienz verbessern.
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.
C1 noun ˌɒk.sɪˈdeɪ.ʃən

oxidation

Oxidation
Meaning
A chemical reaction that involves the combination of a substance with oxygen, often causing deterioration.
Example
Oxidation causes metal surfaces to weaken.
Die Oxidation schwächt Metalloberflächen.
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.
C1 noun /ˈɔr.ə.tər/

Orator

Redner
Meaning
a public speaker, especially one who is eloquent or skilled in speaking
Example
The famous orator delivered an inspiring speech.
Der berühmte Redner hielt eine inspirierende Rede.
B1 noun /əˈpɪn.jən/

Opinion

meinung
Meaning
a view or judgment formed about something; a belief or assessment based on grounds short of proof
Example
In my opinion, this is the best solution.
Meiner Meinung nach ist dies die beste Lösung.
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.
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.
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.
C1 adjective /əˈblɪɡ.ə.tɔː.ri/

obligatory

obligatorisch
Meaning
Required by a legal, moral, or other rule; compulsory.
Example
Wearing a seatbelt is obligatory in most countries.
Das Tragen eines Sicherheitsgurts ist in den meisten Ländern obligatorisch.
C1 noun /ˈaʊtpoʊst/

outpost

außenposten
Meaning
A small military camp or position at some distance from the main force, used especially as a guard.
Example
The soldiers were stationed at a remote outpost.
Die Soldaten wurden an einem abgelegenen Außenposten stationiert.
C2 verb /əˈkluːd/

occlude

verstopfen
Meaning
To block or close up an opening or passage.
Example
The pipe was occluded by mineral deposits.
Das Rohr war durch Mineralablagerungen blockiert.
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.
A1 adjective /oʊˈkeɪ/

ok

in Ordnung
Meaning
used to indicate agreement, approval, or understanding
Example
Okay, let's go to the park.
In Ordnung, lass uns zum Park gehen.
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.
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.
B2 adjective /ˈɔɪl.i/

Oily

ölig; mit Öl bedeckt; fettig
Meaning
covered with oil; containing oil; greasy
Example
Her oily skin needs special care.
Ihre ölige Haut braucht besondere Pflege.
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.
C2 adjective /ˈɒfɪʃ/

offish

reserviert
Meaning
Unfriendly, distant, or reserved in manner.
Example
He seemed offish at the party and avoided most conversations.
Er schien auf der Party reserviert zu sein und vermied die meisten Gespräche.
C1 verb /əbˈstrʌkt/

obstruct

blockieren
Meaning
to block or hinder progress; to prevent or impede movement
Example
The fallen tree obstructed the road for several hours.
Der gefallene Baum blockierte die Straße mehrere Stunden lang.
C2 noun /ˌɔːrnɪˈθɒlədʒɪst/

ornithologist

Ornithologe
Meaning
a scientist who studies birds
Example
The ornithologist spent years studying migratory birds.
Der Ornithologe verbrachte Jahre mit der Untersuchung von Zugvögeln.
B2 verb /əbˈteɪn/

obtain

erhalten
Meaning
to get or acquire something
Example
You need to obtain a visa before traveling abroad.
Du musst ein Visum erhalten, bevor du ins Ausland reist.
B2 noun /ˈɔːrnəmənt/

ornament

Schmuck
Meaning
A decorative object that adds beauty to something.
Example
The Christmas tree was decorated with colorful ornaments.
Der Weihnachtsbaum war mit buntem Schmuck geschmückt.
C2 noun /ˈɒbsɪkwiːz/

obsequies

Begräbnisriten
Meaning
Funeral rites or ceremonies.
Example
The obsequies for the late leader drew thousands of mourners.
Die Begräbnisriten für den verstorbenen Führer zogen Tausende von Trauergästen an.
C2 verb /əbˈtruːd/

obtrude

aufdrängen
Meaning
to force oneself or one's ideas into a situation uninvited or inappropriately
Example
He didn’t want to obtrude into their private conversation.
Er wollte nicht in ihr privates Gespräch aufdrängen.
A2 adjective /ɒd/

Odd

seltsam; ungewöhnlich; anders als das, was normal oder erwartet wird
Meaning
strange; unusual; different from what is normal or expected
Example
That's an odd way to solve the problem.
Das ist eine seltsame Art, das Problem zu lösen.
B1 adjective, adverb /ˈoʊvərɔːl/

overall

insgesamt
Meaning
in general or as a whole
Example
Overall, the project has been successful.
Insgesamt war das Projekt erfolgreich.
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.
B2 adjective /əˈpəʊzd/

opposed

entgegengesetzt
Meaning
being against or in disagreement with something
Example
She is strongly opposed to animal testing.
Sie ist entschieden gegen Tierversuche.
C2 verb /ˈɔːreɪt/

orate

reden
Meaning
To speak in a formal, often pompous manner
Example
He began to orate at the ceremony.
Er begann, bei der Zeremonie zu reden.
B2 noun /ˈoʊvərpæs/

overpass

Brücke
Meaning
A bridge that carries one road or railway over another.
Example
The new overpass reduced traffic congestion in the city.
Die neue Brücke reduzierte den Verkehrsstau in der Stadt.
B2 adjective /ˈɔː.də.li/

Orderly

ordentlich; systematisch; friedlich
Meaning
well-organized; systematic; peaceful
Example
Please keep your desk orderly and clean.
Bitte halten Sie Ihren Schreibtisch ordentlich und sauber.
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.
B2 adverb /əˈfɪʃəli/

officially

offiziell
Meaning
in a formal or authorized way
Example
The building was officially opened by the mayor.
Das Gebäude wurde offiziell vom Bürgermeister eröffnet.
B2 noun /ˈaʊtˌskɜːrt/

outskirt

der Stadtrand
Meaning
the outer edge or border of a town or city
Example
They built a new factory on the outskirts of the city.
Sie bauten eine neue Fabrik am Stadtrand der Stadt.
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.
C1 verb /əˈfɪʃieɪt/

officiate

leiten
Meaning
To perform official duties, especially in a ceremony or as a referee.
Example
The priest will officiate the wedding ceremony.
Der Priester wird die Hochzeitszeremonie leiten.
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.
C2 adjective /ˈoʊ.pən ˈhæn.dɪd/

Open-handed

großzügig; liberal
Meaning
Generous; liberal; giving freely;
Example
He is very open-handed with his money and always helps those in need.
Er ist sehr großzügig mit seinem Geld und hilft immer den Bedürftigen.
C1 noun /ˈɒf.sprɪŋ/

offspring

Nachwuchs
Meaning
a person's child or children; an animal's young
Example
The bird carefully fed its offspring.
Der Vogel fütterte vorsichtig seinen Nachwuchs.
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.
A2 noun /ˈʌv.ən/

Oven

ofen
Meaning
an enclosed compartment used for heating, baking, or drying food
Example
She baked cookies in the oven for thirty minutes.
Sie backte Kekse im Ofen für dreißig Minuten.
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.
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.
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 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.
B1 adjective /ˌoʊvərˈsiːz/

overseas

ins Ausland
Meaning
in or to a foreign country across the sea
Example
He went overseas for higher education.
Er ging ins Ausland für höhere Bildung.
C2 noun /əbˈstrʌkʃənɪst/

obstructionist

Verhinderer
Meaning
a person who deliberately delays or prevents progress by being uncooperative or oppositional
Example
The obstructionist in the committee kept delaying the decision-making process.
Der Verhinderer im Ausschuss verzögerte weiterhin den Entscheidungsfindungsprozess.
B2 noun /əbˈzɜːvər/

observer

Beobachter
Meaning
a person who watches or notices something
Example
The observer took notes during the meeting.
Der Beobachter machte während des Treffens Notizen.
A1 pronoun, noun, adjective /wʌn/

one

eins
Meaning
the number equivalent to the sum of zero and one; a single person or thing
Example
Only one student answered the question.
Nur ein Student beantwortete die Frage.
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.
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 /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.
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.
C2 noun /oʊliˈændər/

Oleander

oleander
Meaning
a poisonous evergreen shrub with clusters of white, pink, or red flowers
Example
The beautiful oleander flowers bloomed in the garden despite their toxic nature.
Die schönen Oleanderblumen blühten im Garten, trotz ihrer giftigen Natur.
C1 verb /ˈɒs.ɪ.leɪt/

oscillate

sich hin und her bewegen oder schwingen zwischen zwei Punkten oder Zuständen
Meaning
To swing or move back and forth between two points or states
Example
The stock market tends to oscillate during uncertain times.
Der Aktienmarkt tendiert dazu, sich in unsicheren Zeiten zu bewegen.
B2 verb /oʊˈmɪt/

omit

weglassen
Meaning
to leave out or exclude; to fail to include something
Example
Please don't omit any important details from your report.
Bitte lassen Sie keine wichtigen Details in Ihrem Bericht aus.
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.
A2 adjective /ˈaʊtdɔːr/

outdoor

im Freien
Meaning
situated, existing, or done outside a building
Example
We planned an outdoor picnic for the weekend.
Wir haben ein Picknick im Freien für das Wochenende geplant.
A1 verb /ˈoʊpən/

open

öffnen
Meaning
to move something so as to allow access; to begin
Example
Please open the door for me.
bitte öffne die Tür für mich.
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.
C1 adjective /ˌɒbsəˈliːt/

obsolete

veraltet
Meaning
No longer in use or out of date.
Example
Floppy disks are now completely obsolete.
Floppy-Disks sind jetzt völlig veraltet.
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.
B1 noun /ˈɔːfɪsər/

officer

Beamter
Meaning
a person in a position of authority, especially in law enforcement
Example
The officer gave him a ticket for speeding.
Der Beamte gab ihm ein Ticket wegen zu schnellen Fahrens.
A1 adjective /ˈɔːr.ɪndʒ/

Orange

orange
Meaning
having a color between red and yellow like that of a ripe orange fruit
Example
The orange sunset painted the sky magnificently.
Der orange Sonnenuntergang malte den Himmel prächtig.
B1 adverb /ˈʌðərwaɪz/

Otherwise

anders; sonst
Meaning
in a different way; if not; or else; apart from that
Example
Study hard, otherwise you will fail the exam.
Lerne hart, sonst fällst du durch die Prüfung.
C1 noun /ˌɒbstəˈtrɪʃən/

obstetrician

Geburtshelfer
Meaning
A doctor specializing in pregnancy, childbirth, and women's reproductive health.
Example
The obstetrician monitored the mother’s health throughout the pregnancy.
Der Geburtshelfer überwachte die Gesundheit der Mutter während der Schwangerschaft.
C1 noun /oʊˈveɪʃən/

ovation

Beifall
Meaning
an enthusiastic show of approval, especially by clapping hands
Example
The actor received a standing ovation after his performance.
Der Schauspieler erhielt nach seiner Aufführung stehende Ovationen.
C1 noun /oʊˈeɪ.sɪs/

Oasis

Oase
Meaning
a fertile spot in a desert where water is found; a pleasant refuge
Example
The travelers found an oasis after days in the desert.
Die Reisenden fanden eine Oase nach mehreren Tagen in der Wüste.
C2 noun /ˌɔːrəˈtɔːri.oʊ/

oratorio

religiöse Musikkomposition
Meaning
A large-scale musical composition for orchestra, choir, and soloists, usually on a sacred theme, performed without costumes or scenery.
Example
Handel's 'Messiah' is one of the most famous oratorios ever written.
Handels 'Messias' ist eines der bekanntesten Oratorien, die je geschrieben wurden.
C2 adjective /əbˈtruːsɪv/

obtrusive

aufdringlich
Meaning
noticeable in an unpleasant or unwelcome way; intrusive
Example
The advertisement was so obtrusive that it ruined the user’s experience.
Die Werbung war so aufdringlich, dass sie das Benutzererlebnis ruinierte.
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 /ˈɑp.ər.ə.tɪv/

Operative

aktiv; in Kraft; funktionierend; betriebsbereit;
Meaning
Functioning; in effect; working; active;
Example
The new safety protocols became operative immediately after the accident.
Die neuen Sicherheitsprotokolle wurden unmittelbar nach dem Unfall betriebsbereit.
C2 adjective /ˈɔːrnəri/

ornery

grimmig
Meaning
bad-tempered and combative; stubborn
Example
The ornery old man refused to leave his chair.
Der grimmige alte Mann weigerte sich, seinen Stuhl zu verlassen.
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.
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.
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.
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 /ˈoʊpiət/

opiate

Opiat
Meaning
a drug containing opium or its derivatives, used to relieve pain or cause sleep
Example
The doctor prescribed an opiate to relieve the patient's pain.
Der Arzt verschrieb dem Patienten ein Opiat, um die Schmerzen zu lindern.
C1 adjective /ˌaʊt əv ðə ˈweɪ/

out-of-the-way

abgelegen oder ungewöhnlich
Meaning
remote or unusual; not in a convenient or usual location
Example
They stayed in an out-of-the-way village.
Sie blieben in einem abgelegenen Dorf.
C1 adjective /əbˈnɒkʃəs/

Obnoxious

anstößig
Meaning
extremely unpleasant; offensive; annoying
Example
His obnoxious behavior at the party annoyed everyone.
Sein anstößiges Verhalten auf der Party ärgerte alle.
C1 noun /ˈɒn.slɔːt/

onslaught

Angriff
Meaning
A fierce or destructive attack.
Example
The village faced an onslaught of enemy forces.
Das Dorf sah sich einem Angriff der feindlichen Truppen gegenüber.
A2 noun /ˈɒbdʒɪkt/

object

Gegenstand
Meaning
a thing that can be seen and touched
Example
The table is an object in the room.
Der Tisch ist ein Gegenstand im Raum.
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.
A1 pronoun /ˈʌðərz/

others

andere
Meaning
people or things distinct from the ones already mentioned or known
Example
I like to spend time with others.
Ich verbringe gerne Zeit mit anderen.
A2 noun /ˈoʊ.ʃən/

ocean

Ozean
Meaning
A very large expanse of sea, especially the main areas of sea between continents.
Example
The ocean covers more than 70% of the Earth's surface.
Der Ozean bedeckt mehr als 70% der Erdoberfläche.
C2 verb /əbˈvɜːrt/

obvert

umkehren
Meaning
To turn something so as to face in a different direction; in logic, to convert a proposition by negating both subject and predicate.
Example
The teacher asked the students to obvert the statement for practice.
Der Lehrer bat die Schüler, die Aussage zum Üben zu obvertieren.
C1 noun /ˈoʊvərˌtʊr/

overture

Vorspiel / Vorschlag
Meaning
An introduction to something more substantial; a proposal or preliminary action.
Example
The peace overture was welcomed by both nations.
Der Friedensvorschlag wurde von beiden Nationen begrüßt.
C2 noun ˈɒpjʊləns

opulence

Opulenz
Meaning
Great wealth or luxuriousness.
Example
The opulence of the mansion was evident in its ornate furnishings.
Die Opulenz des Herrenhauses war in seiner verzierenden Einrichtung offensichtlich.
A2 adjective /ˈɑp.ə.zɪt/

Opposite

entgegengesetzt; völlig unterschiedlich; einander zugewandt; umgekehrt;
Meaning
Contrary; completely different; facing each other; reverse;
Example
They have opposite views on politics but remain good friends.
Sie haben gegensätzliche Ansichten zur Politik, bleiben aber gute Freunde.
B2 noun /ˈoʊtˌmiːl/

oatmeal

Haferbrei
Meaning
A type of porridge made from ground oats, often eaten for breakfast.
Example
She eats a bowl of oatmeal every morning for breakfast.
Sie isst jeden Morgen eine Schüssel Haferbrei zum Frühstück.
A1 noun /ɒkˈtoʊbər/

october

Oktober
Meaning
the tenth month of the year in the Gregorian calendar
Example
The weather becomes cooler in October.
Im Oktober wird das Wetter kühler.
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 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.
C1 verb /aʊtˈlɪv/

outlive

überleben
Meaning
to live longer than someone or something else
Example
She outlived all her siblings.
Sie hat alle ihre Geschwister überlebt.
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.
C1 adjective əʊˈpeɪk

opaque

undurchsichtig, undurchdringlich, schwer zu verstehen
Meaning
Not able to be seen through; not transparent; difficult to understand.
Example
The glass was too opaque to see through.
Das Glas war zu undurchsichtig, um hindurch zu sehen.
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 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 /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 /ˈaʊt.laɪn/

Outline

Umriss; Entwurf; Skizze
Meaning
a general description or plan showing the essential features of something; the main points
Example
The teacher provided an outline of the course syllabus.
Der Lehrer stellte eine Umriss des Kursplans zur Verfügung.
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.
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 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.
A2 adverb /ˈɒbviəsli/

obviously

offensichtlich
Meaning
in a way that is easily perceived or understood; clearly
Example
Obviously, he didn’t read the instructions.
Offensichtlich hat er die Anweisungen nicht gelesen.
B2 noun /ɒpˈtɪʃən/

optician

Optiker
Meaning
A person who makes or sells glasses and contact lenses.
Example
The optician adjusted my new glasses to fit better.
Der Optiker passte meine neuen Brillen so an, dass sie besser passten.
A1 interjection /oʊ/

oh

Oh
Meaning
used to express surprise, realization, or understanding
Example
Oh, I didn't know you were here!
Oh, ich wusste nicht, dass du hier bist!
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.
B2 noun /ˈɔɪ.stər/

Oyster

Auster
Meaning
a type of shellfish that can be eaten and sometimes contains pearls
Example
She ordered fresh oysters at the seafood restaurant.
Sie bestellte frische Austern im Meeresfrüchte-Restaurant.
B2 adjective /ˈɔː.rəl/

Oral

mündlich; bezogen auf den Mund
Meaning
spoken rather than written; relating to the mouth
Example
The oral examination will test your speaking skills.
Die mündliche Prüfung wird Ihre Sprechfähigkeiten testen.