obtrusive
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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.
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 verb /ˌoʊvərˈsiː/

oversee

überwachen
Meaning
to supervise or watch over something; to manage and direct
Example
The manager will oversee the entire construction project.
Der Manager wird das gesamte Bauprojekt überwachen.
C1 noun /ˈɒfʃuːt/

offshoot

Abspaltung
Meaning
A branch or result that develops from something larger or more important.
Example
The startup was an offshoot of a major tech company.
Das Startup war eine Abspaltung eines großen Tech-Unternehmens.
B2 noun /ˈaʊt.kʌm/

Outcome

Ergebnis; Folge;
Meaning
the result or consequence of an action or situation; the final product
Example
The outcome of the election surprised everyone.
Das Ergebnis der Wahl überraschte alle.
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.
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 adjective ɔːrˈɡæn.ɪk

organic

biologisch
Meaning
Produced or involving production without the use of chemical fertilizers, pesticides, or other artificial agents.
Example
Organic farming improves soil health and reduces pollution.
Ökologischer Landbau verbessert die Gesundheit des Bodens und reduziert die Verschmutzung.
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.
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.
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 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.
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.
A1 pronoun /aʊərz/

ours

unser
Meaning
belonging to or associated with us
Example
This victory is ours.
Dieser Sieg gehört uns.
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.
A1 pronoun /aʊər/

our

unser
Meaning
belonging to or associated with the speaker and one or more other people
Example
This is our house.
Dies ist unser Haus.
C2 verb /ˈoʊɡəl/

ogle

gierig anschauen
Meaning
To look at someone with obvious sexual interest.
Example
He kept ogling the models on the runway.
Er konnte die Models auf dem Laufsteg nicht aus den Augen lassen.
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.
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.
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 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.
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.
B2 noun /ˈaʊtlʊk/

outlook

Aussicht, Prognose
Meaning
a person's general attitude or view; a forecast or prospect
Example
The economic outlook for the year is positive.
Der wirtschaftliche Ausblick für das Jahr ist positiv.
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.
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.
C1 noun /ˌɑːk.sɪˈmɔːr.ɒn/

oxymoron

Oxymoron
Meaning
a figure of speech where two contradictory terms are combined
Example
The phrase 'deafening silence' is a classic oxymoron.
Der Ausdruck 'ohrenbetäubende Stille' ist ein klassisches Oxymoron.
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.
B2 noun /ˌɒb.zəˈveɪ.ʃənz/

observations

Beobachtung
Meaning
The action or process of observing something carefully.
Example
Observations of distant galaxies provide new insights.
Beobachtungen von fernen Galaxien liefern neue Einblicke.
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.
A2 noun /ˈoʊpənɪŋ/

opening

Eröffnung
Meaning
an act or instance of beginning something
Example
The opening of the new store was a huge success.
Die Eröffnung des neuen Geschäfts war ein großer Erfolg.
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.
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.
C1 noun/verb /ˈoʊvərˌhæŋ/

overhang

Überhang
Meaning
To extend outward and hang over something; a projecting part.
Example
The roof overhang provides shade in the summer.
Das Überhängen des Dachs bietet im Sommer Schatten.
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.
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 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.
B1 noun /ˌɑk.jəˈpeɪ.ʃən/

Occupation

Beruf; Beschäftigung; Übernahme
Meaning
a job or profession; the action of taking control of a place
Example
Teaching is her chosen occupation.
Lehren ist ihr gewählter Beruf.
C1 noun ɔːrˈdiːl

ordeal

harte Prüfung
Meaning
A physical or mental painful experience that must be endured
Example
Surviving the wilderness was a tough ordeal for them.
Das Überleben in der Wildnis war eine harte Prüfung für sie.
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 /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.
B2 noun /ɔːrˈɡæn.ɪk ˈfɑːr.mɪŋ/

organic farming

biologische Landwirtschaft
Meaning
Farming method that avoids synthetic chemicals and fertilizers, using natural methods instead.
Example
Organic farming improves soil health and reduces pollution.
Biologische Landwirtschaft verbessert die Gesundheit des Bodens und reduziert die Verschmutzung.
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.
C2 noun /ˈoʊ.kəm/

oakum

alte Tauwerkfasern
Meaning
loose fibers obtained by untwisting old ropes, used for caulking ships
Example
The shipbuilders used oakum to seal the gaps in the wooden planks.
Die Schiffbauer verwendeten Oakum, um die Ritzen in den Holzplanken zu versiegeln.
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.
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.
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.
B2 noun /ˈɔr.fən/

Orphan

Waisenkind
Meaning
a child whose parents are dead; someone without protective support
Example
The orphan was adopted by a loving family.
Das Waisenkind wurde von einer liebevollen Familie adoptiert.
A1 preposition /ʌv/

of

von
Meaning
expressing the relationship between a part and a whole
Example
The book is on the table, in front of the window.
Das Buch ist auf dem Tisch, vor dem Fenster.
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.
B2 adjective /əˈfen.sɪv/

Offensive

beleidigend; insultierend; aggressiv
Meaning
causing displeasure or resentment; insulting; aggressive
Example
His offensive remarks hurt everyone's feelings.
Seine beleidigenden Bemerkungen verletzten die Gefühle aller.
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 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.
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.
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 noun /ˈɒksɪdənt/

occident

Okzident
Meaning
The countries of the West, especially Europe and America.
Example
The Occident has a long history of philosophical thought.
Der Okzident hat eine lange Geschichte der philosophischen Gedanken.
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.
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.
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.
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.
C2 noun /ɑːlˈfækʃən/

olfaction

Geruchssinn
Meaning
The sense of smell; the process of detecting and perceiving odors.
Example
Dogs have a highly developed sense of olfaction.
Hunde haben einen sehr gut entwickelten Geruchssinn.
B2 noun /ˌoʊ.vɚˈkraʊ.dɪŋ/

overcrowding

übermäßige Menschenansammlungen
Meaning
Excessive crowd or packed condition, having more people or vehicles in a place than the approved capacity.
Example
The subway system suffers from severe overcrowding during peak hours.
Das U-Bahn-System leidet während der Hauptverkehrszeiten unter schwerer Überfüllung.
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 adjective/adverb /ˈɒnˌlaɪn/

online

online
Meaning
connected to or available through the internet
Example
I prefer shopping online rather than going to stores.
Ich kaufe lieber online ein, als in Geschäfte zu gehen.
C1 noun /əbˈstrʌkʃən/

obstruction

hindernis
Meaning
Something that blocks or gets in the way; the action of obstructing.
Example
There was an obstruction on the railway track.
Es gab ein Hindernis auf den Gleisen.
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.
B2 noun /wʌn θɜːd/

one-third

ein Drittel
Meaning
one part of something that is divided into three equal parts
Example
One-third of the class was absent today.
Ein Drittel der Klasse war heute abwesend.
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.
C1 noun /ˈaʊtˌɡroʊθ/

outgrowth

Auswuchs
Meaning
something that grows out of something else; a natural development or result
Example
The new policy was an outgrowth of years of debate.
Die neue Politik war ein Auswuchs jahrelanger Debatten.
C1 adjective /əbˈdʒek.ʃən.ə.bəl/

Objectionable

anstößig
Meaning
arousing distaste or opposition; unpleasant or offensive
Example
His objectionable behavior made everyone uncomfortable.
Sein anstößiges Verhalten machte alle unwohl.
B2 adjective /ˈɒp.ʃən.əl/

Optional

optional
Meaning
not compulsory; left to choice
Example
Wearing a tie is optional for this event.
Das Tragen einer Krawatte ist für diese Veranstaltung optional.
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.
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.
B1 adjective /əˈkeɪ.ʒən.əl/

Occasional

gelegentlich
Meaning
occurring infrequently or irregularly; happening from time to time
Example
She enjoys occasional walks in the park.
Sie genießt gelegentliche Spaziergänge im Park.
C1 noun /ˈaʊtˌkraɪ/

outcry

Protest
Meaning
A strong expression of public anger or disapproval.
Example
The decision sparked an outcry among the citizens.
Die Entscheidung löste einen Protest unter den Bürgern aus.
C2 noun /ˌɔːrnɪˈθɑːlədʒi/

ornithology

Ornithologie
Meaning
the scientific study of birds
Example
She pursued ornithology to understand the migration patterns of birds.
Sie verfolgte die Ornithologie, um die Zugmuster der Vögel zu verstehen.
B1 noun ˌɔː.ɡən.aɪˈzeɪ.ʃən

organization

Organisation
Meaning
An organized group of people with a particular purpose, such as a business or government department.
Example
The organization was officially inaugurated in 2024.
Die Organisation wurde 2024 offiziell eingeweiht.
C1 noun /ɔːr/

Oar

Ruder
Meaning
a long pole with a flat blade used to row a boat
Example
He dipped the oar into the water and pulled the boat forward.
Er tauchte das Ruder ins Wasser und zog das Boot vorwärts.
B1 adjective /ˌoʊld ˈfæʃənd/

old-fashioned

altmodisch
Meaning
not modern; belonging to an earlier time
Example
He still wears an old-fashioned hat.
Er trägt immer noch einen altmodischen Hut.
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.
C1 adjective əˈblɪv.i.əs

oblivious

unbewusst
Meaning
Being completely unaware of surrounding events.
Example
He was oblivious to the noise around him while reading.
Er war beim Lesen völlig unbewusst von dem Lärm um ihn herum.
C1 adjective /əbˈsɛsɪv/

obsessive

obsessiv
Meaning
Relating to or characterized by an obsession; thinking about something too much.
Example
He has an obsessive interest in cleanliness.
Er hat ein obsessives Interesse an Sauberkeit.
B1 adverb /əˈrɪdʒɪnəli/

originally

ursprünglich
Meaning
in the beginning, at first
Example
Originally, she wanted to be a doctor.
Ursprünglich wollte sie Ärztin werden.
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.
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.
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.
C1 noun /ˈoʊ.mən/

Omen

Vorzeichen für zukünftiges Glück oder Unglück
Meaning
an event regarded as a sign of future good or bad luck
Example
Many people consider a black cat crossing your path a bad omen.
Viele Menschen betrachten eine schwarze Katze, die ihren Weg kreuzt, als schlechtes Vorzeichen.
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 /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 /ˌɒn.əˌmæt.əˈpiː.ə/

onomatopoeia

Onomatopöie
Meaning
The formation of a word from a sound associated with what is named.
Example
The word 'buzz' is an example of onomatopoeia.
Das Wort 'Summen' ist ein Beispiel für Onomatopöie.
C1 verb /aʊtˈwɪt/

outwit

überlisten
Meaning
to defeat or gain an advantage over someone by being more clever or cunning
Example
The fox managed to outwit the hunters.
Der Fuchs konnte die Jäger überlisten.
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.
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.
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.
B2 noun /ˈaʊtskɜːrts/

outskirts

Vororte der Stadt
Meaning
The outer parts of a town or city, away from the center.
Example
They moved to the outskirts of the city for a quieter life.
Sie zogen in die Vororte der Stadt für ein ruhigeres Leben.
B2 noun /ˈɔːɡənɪzəm/

organism

Organismus
Meaning
a living thing that has an organized structure and can grow and reproduce
Example
Every organism needs water to survive.
Jeder Organismus braucht Wasser, um zu überleben.
A2 noun /ˈɒpərə/

opera

Oper
Meaning
a dramatic performance in which the actors sing most of their lines
Example
We watched a beautiful opera at the theater last night.
Wir haben gestern Abend im Theater eine schöne Oper gesehen.
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 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.
C2 noun /ˈɔɪl.mən/

Oilman

Ölverkäufer
Meaning
a person who works in the oil industry; someone who sells oil or petroleum products
Example
The oilman discovered a new oil field in the desert.
Der Ölverkäufer entdeckte ein neues Ölfeld in der Wüste.
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 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.
B1 verb অকার্স

occurs

tritt auf
Meaning
Happens or takes place, especially as a result of something.
Example
Snowfall occurs in regions with freezing temperatures.
Schneefall tritt in Regionen mit Temperaturen unter dem Gefrierpunkt auf.
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.
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.
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.
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.
C1 noun /ˈɑːdəsi/

odyssey

lange Reise
Meaning
a long, adventurous journey; a series of experiences
Example
Her career has been an odyssey of challenges and achievements.
Ihre Karriere war eine Odyssee aus Herausforderungen und Erfolgen.
C1 noun /oʊˈbɪt.ʃu.er.i/

Obituary

Nachruf
Meaning
a notice of someone's death published in a newspaper; biographical account of deceased person
Example
The newspaper published his obituary yesterday.
Die Zeitung veröffentlichte gestern seinen Nachruf.
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.
B2 noun /ˈoʊ.vər ɡroʊθ/

Over growth

Überwuchs
Meaning
excessive growth beyond normal size; too much development or expansion
Example
The overgrowth of weeds made the garden look untidy.
Der Überwuchs des Unkrauts ließ den Garten ungeordnet erscheinen.
C2 noun /ɔːrˈθɑːɡrəfi/

orthography

Orthografie
Meaning
The conventional spelling system of a language.
Example
English orthography can be confusing for learners.
Die englische Orthografie kann für Lernende verwirrend sein.
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.
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.
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 /ˌɒmnɪˈprezənt/

omnipresent

omnipräsent
Meaning
(of God) present everywhere at the same time.
Example
Social media has become an omnipresent force in modern society.
Soziale Medien sind zu einer omnipräsenten Kraft in der modernen Gesellschaft geworden.
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.
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.
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 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.
C1 noun /əbˈzɜːrvətɔːri/

observatory

observatorium
Meaning
A building equipped for observing astronomical or meteorological events.
Example
The observatory is open to the public on weekends.
Das Observatorium ist am Wochenende für die Öffentlichkeit geöffnet.
C2 verb /ˈɒsɪfaɪ/

ossify

verknöchern
Meaning
to turn into bone or become rigid and inflexible
Example
With age, some tissues tend to ossify.
Mit dem Alter neigen einige Gewebe dazu, zu osifizieren.