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Wordabulary

Word library

8,130 words, searchable by word, definition, part of speech, and CEFR level.

our Pronoun A1

Shows that something belongs to the speaker and at least one other person.

ours Pronoun B1

Used to show that something belongs to the speaker and at least one other person.

ourselves Pronoun A2

Used to refer back to the speaker and others as the object of a verb, or for emphasis.

out Adverb A1

Away from the inside of a place, or no longer switched on.

out of Preposition A2

Moving away from the inside of a place, or made from a material, or lacking something.

outcome Noun A2

The final result of an action, event, or process.

outdoor Adjective B1

Located, happening, or used outside a building.

outdoors Adverb B1

In or into the open air, outside a building.

outer Adjective A1

On the outside, or further from the center.

outline Noun A2

A summary of the main points of something, or a line showing the shape of an object.

outpost Noun B1

A small settlement or military post established far from the main base, often in a remote area.

output Noun B1

The amount of something produced, or the information a computer or machine produces.

outside Preposition A1

Not inside, in the open air or beyond the edge of something.

outstanding Adjective B1

Extremely good, or, in a different sense, not yet paid or finished.

outstrip Verb C1

To become greater or better than something, or to move faster than it.

oval Noun A1

A rounded shape like an egg or a flattened circle.

oven Noun A1

An enclosed box, usually part of a kitchen, that uses heat to cook or bake food.

over Preposition A1

Above something, or covering it from above.

overall Adjective B2

Including or considering everything; total.

overall Adverb B2

Considering everything; in general.

overarching Adjective B2

Covering or influencing everything else within a particular situation, the single most important or general point.

overcome Verb A2

To succeed in dealing with a serious problem or a difficult feeling.

overfishing Noun B1

Catching fish faster than fish populations can naturally replace themselves, leading to a decline in numbers.

overgrown Adjective A1

Covered with plants that have grown too thickly because of neglect.

overhaul Verb B1

To examine something thoroughly and make significant changes or repairs to improve it.

overland Adjective A2

Traveling across land rather than by sea or air.

overnight Adverb A1

During the night, or happening very quickly, almost from one day to the next.

overseas Adverb A2

In or to a foreign country, across the sea.

overshadow Verb B2

To make something seem less important or impressive by comparison.

overthrow Verb B1

To remove a government or leader from power by force.

overwrought Adjective C1

In a state of nervous excitement or anxiety, or excessively elaborate.

owe Verb B2

To be required to pay or repay money to someone, or to feel gratitude toward someone.

owl Noun A1

A bird with large eyes that hunts at night and is known for its silent flight.

own Adjective A1

Belonging to a particular person and not to anyone else.

owner Noun A2

A person who owns something.

ownership Noun A2

The state of legally owning something.

oxbow lake Noun B2

A curved lake formed when a looping river bend is cut off from the main channel.

oxidation Noun B1

A chemical reaction in which a substance combines with oxygen, often causing it to lose electrons.

oxidation number Noun B2

A number assigned to an atom in a compound that represents how many electrons it has effectively gained or lost compared with its neutral state.

oxidation state Noun B2

A number that represents how many electrons an atom has gained, lost, or shared compared to its neutral form.

oxidising agent Noun B2

A substance that causes another substance to lose electrons during a chemical reaction, while it is itself reduced.

oxygen Noun A2

A gas in the air that people, animals, and plants need to live.

oxymoron Noun B2

A phrase that combines two contradictory words for effect, such as 'deafening silence'.

ozone Noun B1

A gas made of three oxygen atoms that forms a protective layer high in the atmosphere but is also a harmful pollutant closer to the ground.

ozone depletion Noun B2

The gradual thinning of the layer of ozone gas in the upper atmosphere that protects the earth from harmful ultraviolet radiation.

ozone layer Noun B1

A layer of the earth's atmosphere containing a high concentration of ozone that absorbs most of the sun's harmful ultraviolet radiation.

p.m. Noun A2

Used after a time to show it falls between noon and midnight.

pace Noun B2

The speed at which someone or something moves or happens.