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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.
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 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.
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.
B2 noun ˈɔː.bɪt

orbit

Umlaufbahn
Meaning
The curved path of a celestial object around a star, planet, or moon.
Example
The satellite maintains its orbit around Earth.
Der Satellit hält seine Umlaufbahn um die Erde bei.
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.
B2 adverb /ˌoʊvərˈnaɪt/

Overnight

über Nacht; plötzlich; sehr schnell
Meaning
during the night; suddenly; very quickly
Example
The city was transformed overnight.
Die Stadt wurde über Nacht verwandelt.
B2 verb /ɒpt/

opt

wählen
Meaning
to choose or decide to do something instead of something else
Example
Many students opt to study abroad for better opportunities.
Viele Studenten entscheiden sich, im Ausland zu studieren, um bessere Möglichkeiten zu haben.
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.
B2 adjective /aʊtˈreɪdʒəs/

outrageous

empörend
Meaning
Shockingly bad or excessive; very unusual or amusing.
Example
The comedian told an outrageous joke.
Der Komiker erzählte einen empörenden Witz.
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 /ˌɔːrdɪˈneɪʃən/

ordination

ordination
Meaning
The ceremony of conferring holy orders or official religious authority.
Example
The church held a special service for the ordination of new priests.
Die Kirche hielt einen speziellen Gottesdienst zur Ordination neuer Priester ab.
B2 noun /ˈaʊt.breɪk/

Out-break

Ausbruch
Meaning
a sudden occurrence or eruption of something, especially disease or violence
Example
The outbreak of flu affected many students in the school.
Der Ausbruch der Grippe hat viele Schüler in der Schule betroffen.
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.
C1 noun /ˈɒptɪks/

optics

Optik
Meaning
The branch of physics dealing with light and vision.
Example
She studied optics to understand how lenses work.
Sie studierte Optik, um zu verstehen, wie Linsen funktionieren.
C2 noun /ˈɒfərtɔːri/

offertory

Opfergabe
Meaning
The part of a religious service when offerings are collected; the offering itself.
Example
The offertory was taken during the Sunday service.
Die Opfergabe wurde während des Sonntagsgottesdienstes entgegengenommen.
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.
C1 adjective /ˌaʊtˈlændɪʃ/

outlandish

seltsam
Meaning
Looking or sounding bizarre or unfamiliar; strange.
Example
He wore an outlandish costume to the festival.
Er trug ein seltsames Kostüm zum Festival.
B2 verb əbˈzɜːrvd

observed

begehen
Meaning
To celebrate or keep a religious or other festival.
Example
The day is observed annually to raise awareness.
Der Tag wird jährlich begangen, um Bewusstsein zu schaffen.
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.
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.
C2 adjective /ˈoʊ.kən/

oaken

aus Eichenholz
Meaning
made of or resembling oak wood
Example
The villagers gathered around the oaken table in the hall.
Die Dorfbewohner versammelten sich um den Eichentisch in der Halle.
C1 noun /ˈoʊvərˌtoʊn/

overtone

subtile Bedeutung
Meaning
A subtle quality, implication, or additional meaning beyond the obvious.
Example
His speech had political overtones that were hard to ignore.
Seine Rede hatte politische Untertöne, die schwer zu ignorieren waren.
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.
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.
B2 adjective /ˌoʊvərˈwɛlmɪŋ/

overwhelming

überwältigend
Meaning
Very intense; overpowering.
Example
Large tasks can feel overwhelming.
Große Aufgaben können überwältigend wirken.
A2 modal verb /ɔːt/

ought

sollte
Meaning
Used to indicate duty, correctness, or moral obligation.
Example
You ought to respect your elders.
Du solltest deine Älteren respektieren.
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.
C1 noun /ˈəʊ.nəs/

onus

Verantwortung
Meaning
A duty or responsibility, especially a heavy one.
Example
The onus is on the government to provide relief to the victims.
Die Verantwortung liegt bei der Regierung, den Opfern Hilfe zu leisten.
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.
B2 noun /ˈaʊtˌbreɪk/

outbreak

Ausbruch
Meaning
a sudden start or occurrence of something unpleasant, like disease or violence
Example
There was an outbreak of flu in the city.
Es gab einen Ausbruch von Grippe in der Stadt.
B2 noun /əbˈsɛʃən/

obsession

Besessenheit
Meaning
An idea, thought, or concern that continually preoccupies or intrudes on a person's mind.
Example
His obsession with success drove him to work day and night.
Seine Besessenheit vom Erfolg trieb ihn dazu, Tag und Nacht zu arbeiten.
A1 noun/adjective/adverb /ˌaʊtˈsaɪd/

outside

draußen
Meaning
the external part or surface of something; beyond the boundary
Example
Children were playing outside in the yard.
Kinder spielten draußen im Garten.
C2 verb /ˌaʊtməˈnuːvər/

outmaneuver

geschickt überlisten
Meaning
to gain an advantage over an opponent by skillful or clever action
Example
The smaller company managed to outmaneuver its larger rival.
Das kleinere Unternehmen schaffte es, seinen größeren Konkurrenten geschickt zu überlisten.
C1 adjective /əbˈzɜːrvənt/

Observant

beobachtend
Meaning
quick to notice things; watchful; attentive
Example
The observant detective noticed every small detail at the crime scene.
Der aufmerksame Detektiv bemerkte jedes kleine Detail am Tatort.
C1 adjective ˈɒptɪmaɪzd

optimized

optimiert, verbessert, effizienter
Meaning
Made as fully perfect, functional, or effective as possible; improved to achieve maximum efficiency.
Example
The system has been optimized for faster performance.
Das System wurde für eine schnellere Leistung optimiert.
C2 adjective /əbˈsiːkwɪəs/

obsequious

kriecherisch
Meaning
Excessively obedient or attentive in a servile way.
Example
The waiter gave an obsequious bow to every customer.
Der Kellner machte eine kriecherische Verbeugung vor jedem Kunden.
C1 verb /aʊst/

oust

verdrängen
Meaning
To remove someone from a position or place of power or authority.
Example
The rebels ousted the dictator from power.
Die Rebellen verdrängten den Diktator von der Macht.
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 noun /ˈaʊtriːtʃ/

outreach

Erweiterung der Hilfe
Meaning
The act of providing services or support to people who might not otherwise have access to them.
Example
The charity launched a new outreach program for the homeless.
Die Wohltätigkeitsorganisation startete ein neues Programm zur Erweiterung der Hilfe für Obdachlose.
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 /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.
C1 noun /ˈɑn.set/

Onset

Beginn; Auftakt
Meaning
the beginning or early stages of something; the start of a medical condition
Example
The onset of winter brought heavy snowfall.
Der Beginn des Winters brachte starken Schneefall.
B2 verb /ˌoʊvərˈkʌm/

overcome

überwinden
Meaning
To succeed in dealing with a problem or difficulty.
Example
You can overcome procrastination with planning.
Du kannst die Prokrastination mit Planung überwinden.
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.
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 verb /əbˈzɜːrv/

observe

beobachten
Meaning
to watch carefully; to notice or perceive something
Example
Scientists observe the behavior of animals in the wild.
Wissenschaftler beobachten das Verhalten von Tieren in der Wildnis.
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.
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 + noun ˈɒptɪməl ˈtempərətʃər

optimal temperature

optimale Temperatur
Meaning
The best or most favorable temperature for a particular purpose
Example
Winter provides optimal temperature for farming.
Der Winter bietet die optimale Temperatur für die Landwirtschaft.
C1 verb /əbˈsɛs/

obsess

besessen sein von
Meaning
To preoccupy or fill the mind of someone continually and to an excessive degree.
Example
She tends to obsess over small details.
Sie neigt dazu, sich über kleine Details zu besessen.
C2 adjective /ɒmˈnɪʃ.ənt/

Omniscient

allwissend
Meaning
having complete knowledge; all-knowing
Example
The narrator in the novel appears to be omniscient, knowing every character's thoughts.
Der Erzähler im Roman scheint omniscient zu sein, da er die Gedanken aller Charaktere kennt.
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.
C1 noun ˈaʊt.sɔːr.sɪŋ

outsourcing

Auslagerung
Meaning
The practice of having certain job functions done outside a company instead of having an in-house department or employee handle them.
Example
Many companies use outsourcing to reduce labor costs.
Viele Unternehmen nutzen Outsourcing, um die Arbeitskosten zu senken.
C2 noun /ˈəʊpəs/

opus

kreatives Werk
Meaning
A creative work, especially a large and important piece of music or art.
Example
The composer considered the symphony his greatest opus.
Der Komponist betrachtete die Sinfonie als sein größtes kreatives Werk.
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.
B2 adjective /ˈɒnɡəʊɪŋ/

ongoing

laufend
Meaning
continuing; still in progress
Example
The ongoing project will finish next month.
Das laufende Projekt wird nächsten Monat abgeschlossen sein.
C1 noun /ˌɑːpərˈtuːnɪst/

opportunist

Opportunist
Meaning
A person who takes advantage of situations for personal gain, often disregarding principles.
Example
He is seen as an opportunist who always puts his interests first.
Er wird als Opportunist gesehen, der immer seine eigenen Interessen an erste Stelle setzt.
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.
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.
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.
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.
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.
B2 verb /əˈfend/

offend

beleidigen
Meaning
to cause displeasure or resentment; to hurt someone's feelings
Example
His rude comments offended many people at the meeting.
Seine unhöflichen Kommentare haben viele Menschen bei dem Treffen beleidigt.
A2 adjective /ˈɔː.dɪ.nər.i/

Ordinary

gewöhnlich; normal; nicht besonders
Meaning
normal; usual; not special
Example
It was just an ordinary day at the office.
Es war einfach ein gewöhnlicher Tag im Büro.
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.
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.
B2 noun /ˈɔːɡən/

organ

Organ
Meaning
a part of the body that performs a specific function
Example
The heart is an important organ in the human body.
Das Herz ist ein wichtiges Organ im menschlichen Körper.
B2 noun /ˈaʊtˌsɛt/

outset

Anfang
Meaning
the beginning or start of something
Example
From the outset, the project seemed ambitious but achievable.
Vom Anfang an schien das Projekt ehrgeizig, aber erreichbar.
B1 noun /ˌɒpəˈreɪʃən/

operation

operation
Meaning
an act or process of functioning or operating
Example
The hospital performed a successful operation.
Das Krankenhaus führte eine erfolgreiche Operation durch.
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.
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.
C2 noun /oʊd/

ode

Ode
Meaning
a lyrical poem, often expressing praise or strong emotions
Example
The poet wrote an ode to the beauty of nature.
Der Dichter schrieb eine Ode an die Schönheit der Natur.
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.
A1 preposition /ɒn/

on

auf
Meaning
physically in contact with and supported by a surface
Example
The book is on the table.
Das Buch liegt auf dem Tisch.
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.
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 verb /ˈɑːskjʊleɪt/

osculate

küssen
Meaning
To kiss.
Example
They osculated under the mistletoe during the party.
Sie küssten sich unter dem Mistelzweig während der Party.
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 /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.
A2 adjective /ˈɒb.vi.əs/

Obvious

offensichtlich; leicht zu verstehen
Meaning
easily perceived or understood; clear and apparent to the mind
Example
It was obvious that she was upset about something.
Es war offensichtlich, dass sie über etwas verärgert war.
B1 noun ˌɔː.ɡən.aɪˈzeɪ.ʃənz

organizations

Organisationen
Meaning
Organized groups of people with a particular purpose
Example
Organizations play a key role in policymaking.
Organisationen spielen eine Schlüsselrolle bei der Politikgestaltung.
A2 noun /ˈɔr.dər/

Order

Befehl; Reihenfolge
Meaning
a command or instruction; the arrangement of things following a particular sequence
Example
The teacher gave an order to sit down quietly.
Der Lehrer gab einen Befehl, sich ruhig hinzusetzen.
A2 adjective /əˈlɪmpɪk/

olympic

olympisch
Meaning
related to the Olympic Games, a major international sporting event
Example
She trained hard to compete in the Olympic Games.
Sie trainierte hart, um an den Olympischen Spielen teilzunehmen.
A1 pronoun /aʊərz/

ours

unser
Meaning
belonging to or associated with us
Example
This victory is ours.
Dieser Sieg gehört uns.
C1 verb /əˈprɛs/

oppress

unterdrücken
Meaning
to keep someone down by harsh and unfair use of authority; to suppress
Example
The dictator oppressed the people for decades.
Der Diktator unterdrückte das Volk über Jahrzehnten.
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 verb /uːz/

ooze

sickern
Meaning
to slowly flow or leak out through small openings or pores
Example
Blood began to ooze from the small cut.
Blut begann aus dem kleinen Schnitt zu sickern.
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.
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.
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.
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.
A1 conjunction /ɔːr/

or

oder
Meaning
used to link alternatives
Example
You can have tea or coffee.
Du kannst Tee oder Kaffee haben.
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.
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.
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.
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.
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 verb /ˌoʊvərˈrʌn/

overrun

überwuchern
Meaning
to spread over or occupy completely; to exceed a limit or time
Example
The garden was overrun with weeds.
Der Garten war von Unkraut überwuchert.
A1 adjective /əʊˈkeɪ/

okay

in Ordnung
Meaning
used to express agreement or acceptance
Example
It's okay to leave early today.
Es ist in Ordnung, heute früher zu gehen.
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.
B1 verb /ˈɒpəreɪt/

operate

bedienen
Meaning
to function; to control or manage; to perform surgery
Example
The surgeon will operate on the patient tomorrow.
Der Chirurg wird den Patienten morgen operieren.
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.
C2 adjective /ˌoʊdəˈrɪfərəs/

odoriferous

wohlriechend
Meaning
having or giving off a smell, especially a strong or pleasant one
Example
The garden was filled with odoriferous flowers.
Der Garten war mit wohlriechenden Blumen gefüllt.
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 adjective /ˈɒp.tɪ.məl/

optimal

optimal, am besten
Meaning
Best or most favorable; the most effective under particular conditions.
Example
The optimal temperature for plant growth is around 25°C.
Die optimale Temperatur für das Pflanzenwachstum liegt bei etwa 25°C.
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.
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.
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.
C1 noun /ˈɔːrkɪd/

Orchid

Orchidee
Meaning
a diverse family of flowering plants known for their exotic and often fragrant flowers
Example
The white orchid on the windowsill bloomed for months.
Die weiße Orchidee auf dem Fensterbrett blühte monatelang.
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.
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 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.
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.
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.
B2 noun /ˈoʊ.dər/

Odour

Geruch
Meaning
a distinctive smell, especially an unpleasant one
Example
The odour of fresh bread filled the kitchen.
Der Geruch von frischem Brot füllte die Küche.
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.
C2 noun (plural) /ˈɔːrdʒiːz/

orgies

Orgien
Meaning
Wild gatherings involving excessive indulgence in food, drink, or sexual activity.
Example
The ancient Romans were infamous for their lavish feasts and orgies.
Die alten Römer waren berüchtigt für ihre prächtigen Festessen und Orgien.
C2 adjective /ˌɒbsəˈlɛsnt/

obsolescent

veraltet
Meaning
Becoming outdated or on the way to becoming obsolete.
Example
The obsolescent technology could not compete with modern devices.
Die veraltete Technologie konnte nicht mit modernen Geräten konkurrieren.
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.
B2 noun /ˈɒt.ər/

Otter

Otter
Meaning
a mammal with webbed feet that lives near water and feeds on fish
Example
The playful otter swam gracefully in the river.
Der verspielte Otter schwamm anmutig im Fluss.