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19,295 words · meanings, pronunciation and origins ·
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Part of speech
noun
verb
adjective
adverb
preposition
pronoun
phrase
45 words
clear filters
obesity
/ə(ʊ)ˈbiːsɪti/
noun
B2+
The medical condition of carrying dangerously excessive body fat.
oboe
/ˈəʊbəʊ/
noun
B2+
A slim woodwind with a double reed and a nasal tone.
obscenity
noun
B2+
2 meanings
An offensive or indecent word or act.
obsidian
/ˌɒbˈsɪd.i.ən/
noun
B2+
Black volcanic glass that breaks to a razor edge.
occupancy
/ˈɑk.jə.p(ə)n.(t)si/
noun
B2+
The share of rooms that are actually taken.
ode
/oʊd/
noun
B2+
A poem written in praise of somebody or something.
odometer
/əʊˈdɒmətə/
noun
B2+
The dial counting how far a vehicle has travelled.
odour
noun
B2+
A smell, usually an unpleasant one.
offside
/ɒfˈsaɪd/
noun
B2+
The football rule about standing too far forward.
ogre
/ˈəʊ.ɡə/
noun
B2+
2 meanings
A large cruel man-eating giant of stories.
okra
/ˈɒkɹə/
noun
B2+
A green pod that thickens a stew as it cooks.
oldie
/ˈəʊldi/
noun
B2+
A song that was popular long ago.
omen
/ˈəʊ̯mən/
noun
B2+
A thing that happens and is taken as a sign of what is going to happen, good or bad.
omission
/ə(ʊ)ˈmɪʃ.ən/
noun
B2+
2 meanings
Something that has been left out.
onset
/ˈɒnˌsɛt/
noun
B2+
2 meanings
The beginning of something unpleasant.
onslaught
/ˈɒn.slɔːt/
noun
B2+
A fierce sustained attack.
onyx
/ˈɒnɪks/
noun
B2+
A banded stone, often black, used in jewellery.
opal
/ˈəʊpəl/
noun
B2+
A stone that flashes with shifting colours.
openness
noun
B2+
A readiness to be honest and to listen.
optimist
/ˈɑptɪmɪst/
noun
B2+
A person who tends to expect good outcomes.
optometrist
/ɑpˈtɑmətɹɪst/
noun
B2+
The professional who tests eyesight.
oracle
/ˈɔɹəkəl/
noun
B2+
A person or place through which a god was said to answer.
orbital
/ɔː.bɪt.əl/
adjective
B2+
2 meanings
To do with the path one body takes around another.
ore
/oɹ/
noun
B2+
Rock or earth holding enough metal to make mining it worthwhile.
originality
/əˌɹɪd͡ʒɪˈnælɪti/
noun
B2+
The quality of being genuinely new.
outback
/ˈaʊtbæk/
noun
B2+
The remote inland country of Australia.
outburst
/ˌaʊ̯tˈbɝst/
noun
B2+
2 meanings
A sudden violent release of feeling.
outpatient
/ˈaʊtˌpeɪʃ(ə)nt/
noun
B2+
Somebody treated at a hospital without staying the night.
outpost
/ˈaʊtˌpoʊst/
noun
B2+
2 meanings
A small position held far from the main force.
output
/ˈaʊtpʊt/
noun
B2+
2 meanings
What a system or a worker produces.
outskirts
/ˈaʊtskɝts/
noun
B2+
The far edges of a city, where the buildings thin out.
outsourcing
/ˈaʊtˌsɔː.sɪŋ/
noun
B2+
Paying an outside company to do work your own staff once did.
ovation
[ə(ʊ)ˈveɪ.ʃn̩]
noun
B2+
Long enthusiastic applause from an audience.
overbooking
noun
B2+
Taking more bookings than there are rooms.
overdose
/ˈəʊvə(ɹ)ˌdəʊs/
noun
B2+
2 meanings
A dangerously large dose of a drug.
overdrive
/ˌəʊvə(ɹ)ˈdɹaɪv/<q:verb>
noun
B2+
2 meanings
A state of working far harder than usual.
overhang
/əʊvəˈhaŋ/
noun
B2+
Rock that leans out further than the ground below.
overhaul
/ˈəʊvəˌhɔːl/
verb
B2+
2 meanings
To take something apart and repair it thoroughly.
override
/əʊ.vəˈɹaɪd/
verb
B2+
2 meanings
To set aside somebody else's decision.
oversight
/ˈəʊvəˌsaɪt/
noun
B2+
Supervision, or a mistake made by not noticing.
overthrow
/əʊvəˈθɹəʊ/
verb
B2+
2 meanings
To remove a ruler or a government by force.
overture
/ˈəʊvətjʊə/
noun
B2+
2 meanings
The orchestral opening played before an opera.
overwork
/ˌəʊvəˈwɜːk/
noun
B2+
Too much work for one person to manage.
oxidation
/ɒksɪˈdeɪʃ(ə)n/
noun
B2+
Reaction with oxygen, or the loss of electrons.
ozone
/ˈəʊzəʊn/
noun
B2+
A gas that forms a protective layer high in the atmosphere.