Vocabularies

English Vocabulary Dictionary | Word Meanings, Definitions & Examples

noun C2
/ɑːlˈfækʃən/

The sense of smell; the process of detecting and perceiving odors.

"Dogs have a highly developed sense of olfaction."

olfactory definition card — visual illustration of the meaning
adjective C2
/ɑːlˈfæktəri/

Relating to the sense of smell.

"The perfume activated her olfactory nerves immediately."

Olive barb definition card — visual illustration of the meaning
noun C2
/ˈɒlɪv bɑːb/

A small freshwater fish with olive-colored body and barbels

"The olive barb is commonly found in South Asian rivers."

noun C2
/ˈɒlɪv brɑːntʃ/

A symbol of peace or reconciliation; an offer to end conflict.

"He extended an olive-branch to his rival after years of hostility."

noun C2
/ɒmˈnɪpətəns/

The quality of having unlimited power or authority.

"Many religions describe God’s omnipotence as absolute."

omnipotent definition card — visual illustration of the meaning
adjective C2
/ɒmˈnɪpətənt/

Having unlimited power; able to do anything.

"The CEO acted as if he were omnipotent in the company."

noun C2
/ɒmˈnɪʃəns/

the state of knowing everything

"The novel's narrator has an air of omniscience, revealing every character's thoughts."

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Omniscient

adjective C2
/ɒmˈnɪʃənt/

having complete or unlimited knowledge and awareness

"Some religions describe God as omniscient and all-powerful."

onomatopoeia definition card — visual illustration of the meaning
noun C2
/ˌɒn.əˌmæt.əˈpiː.ə/

The formation of a word from a sound associated with what is named.

"The word 'buzz' is an example of onomatopoeia."

noun C2
/ˈɒn.rʌʃ/

A sudden powerful forward or downward rush or flow.

"The onrush of water swept away the bridge."

noun C2
/ˌoʊpəˈlɛsəns/

a milky or pearly appearance of a surface like that of an opal

"The pearl had a gentle opalescence under the light."

adjective C2
/ˌoʊpəˈlɛsənt/

showing or reflecting a milky, iridescent light like an opal

"The opalescent sky glowed with shades of pink and blue."

adjective C2
/ˈoʊ.pən ˈhæn.dɪd/

Generous; liberal; giving freely;

"He is very open-handed with his money and always helps those in need."

adjective C2
/ˈoʊ.pən ˈhɑrt.ɪd/

Kind and generous; sincere and honest; warmly receptive;

"She welcomed the strangers with an open-hearted smile and invited them for dinner."

noun C2
/ˌɒpəˈrɛtə/

a short opera with light and humorous themes

"The theater staged a famous operetta by Gilbert and Sullivan."

noun C2
/ˈoʊpiət/

a drug containing opium or its derivatives, used to relieve pain or cause sleep

"The doctor prescribed an opiate to relieve the patient's pain."

💬

opine

verb C2
/oʊˈpaɪn/

to express an opinion or belief

"The professor opined that the policy would fail."

noun C2
/ˌɑːpərˈtuːnɪzəm/

The practice of taking advantage of opportunities regardless of principles or ethics.

"His decision was driven by opportunism, not values."

adjective C2
/əˈprəʊ.bri.əs/

Expressing strong criticism or scorn.

"He made opprobrious remarks about his opponent."

opprobrium definition card — visual illustration of the meaning
noun C2
/əˈprəʊ.bri.əm/

Harsh criticism or public disgrace.

"The scandal brought opprobrium on the politician."

opulence definition card — visual illustration of the meaning
noun C2
/ˈɒpjʊləns/

Great wealth, luxury, or abundance.

"The palace displayed a level of opulence that amazed the visitors."

adjective C2
/ˈɒpjʊlənt/

Ostentatiously rich, luxurious, or lavish.

"They hosted an opulent wedding with gold decorations."

🎼

opus

noun C2
/ˈəʊpəs/

A creative work, especially a large and important piece of music or art.

"The composer considered the symphony his greatest opus."

adjective C2
/əˈrækjələr/

Resembling an oracle; giving wise, mysterious, or prophetic statements

"Her oracular words left the audience deep in thought."

Orangefin labeo definition card — visual illustration of the meaning
noun C2
/ˈɔːrɪndʒfɪn ˈleɪbiːoʊ/

a freshwater fish species native to South Asian rivers, commonly found in Bangladesh and India

"The orangefin labeo is an important food fish in Bangladesh."

🎤

orate

verb C2
/ˈɔːreɪt/

To speak in a formal, often pompous manner

"He began to orate at the ceremony."

noun C2
/ɔːˈreɪʃən/

A formal speech, especially one given on a ceremonial occasion

"The president delivered an inspiring oration."

noun C2
/ˌɔːrəˈtɔːri.oʊ/

A large-scale musical composition for orchestra, choir, and soloists, usually on a sacred theme, performed without costumes or scenery.

"Handel's 'Messiah' is one of the most famous oratorios ever written."

noun C2
/ˌɔːrdɪˈneɪʃən/

The ceremony of conferring holy orders or official religious authority.

"The church held a special service for the ordination of new priests."

noun C2
/ˈɔːrdnəns/

Military supplies including weapons, ammunition, and combat equipment.

"The army stored ordnance in a secure facility outside the city."

noun (plural) C2
/ˈɔːrdʒiːz/

Wild gatherings involving excessive indulgence in food, drink, or sexual activity.

"The ancient Romans were infamous for their lavish feasts and orgies."

🔥

orgy

noun C2
/ˈɔːrdʒi/

A wild party involving excessive indulgence, especially of a sexual nature.

"The novel described a scandalous orgy in a wealthy mansion."

🕳️

orifice

noun C2
/ˈɔː.rɪ.fɪs/

an opening or hole, especially in the body or a device

"The medicine was applied through a small orifice in the device."

noun C2
/ˈɒrɪz(ə)n/

a prayer, especially a devout or formal one

"He whispered a quiet orison before going to sleep."

adjective C2
/ˈɔːrnəri/

bad-tempered and combative; stubborn

"The ornery old man refused to leave his chair."

noun C2
/ˌɔːrnɪˈθɒlədʒɪst/

a scientist who studies birds

"The ornithologist spent years studying migratory birds."

noun C2
/ˌɔːrnɪˈθɑːlədʒi/

the scientific study of birds

"She pursued ornithology to understand the migration patterns of birds."

adjective C2
/ˈɔːrəˌtʌnd/

full, rich, and clear in sound; pompous in style

"The actor's orotund voice filled the theater."

adjective C2
/ɔːrˈθɑːɡənl/

at right angles; independent or unrelated

"In mathematics, two vectors are orthogonal if their dot product is zero."

noun C2
/ɔːrˈθɑːɡrəfi/

The conventional spelling system of a language.

"English orthography can be confusing for learners."

verb C2
/ˈɑːskjʊleɪt/

To kiss.

"They osculated under the mistletoe during the party."

adjective C2
/ˈɒsiəs/

consisting of or turned into bone; bony

"The fossil showed osseous structures of the ancient creature."

adjective C2
/ˈɑːsɪˌfaɪd/

Turned into bone or become rigid; unwilling to change.

"The company had an ossified management structure that resisted innovation."

verb C2
/ˈɒsɪfaɪ/

to turn into bone or become rigid and inflexible

"With age, some tissues tend to ossify."

adjective C2
/ɒˈstɛnsɪv/

clearly demonstrative or pointing out; explicitly shown

"The teacher gave an ostensive example to clarify the concept."

noun C2
/ˌɒstɛnˈteɪʃən/

excessive display of wealth or knowledge intended to attract admiration or envy

"The billionaire’s party was full of ostentation and luxury."

verb C2
/ˌaʊtməˈnuːvər/

to gain an advantage over an opponent by skillful or clever action

"The smaller company managed to outmaneuver its larger rival."

verb C2
/aʊtˈraɪd/

to ride faster, farther, or better than someone else

"The young rider managed to outride his competitors in the race."

noun C2
/ˈaʊtˌrɪɡər/

a projecting structure on a boat, used for stability, or a boat fitted with such support

"The fisherman paddled his outrigger canoe across the lagoon."

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overleap

verb C2
/ˌoʊvərˈliːp/

To jump over something; to omit or disregard something.

"He managed to overleap the fence easily."