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[dictionaries](https://md.dictionary.elamur.ai/free/en/) / [English](https://md.dictionary.elamur.ai/free/en/english/) / O

# English words: O

[A](https://md.dictionary.elamur.ai/free/en/english/a/) · [B](https://md.dictionary.elamur.ai/free/en/english/b/) · [C](https://md.dictionary.elamur.ai/free/en/english/c/) · [D](https://md.dictionary.elamur.ai/free/en/english/d/) · [E](https://md.dictionary.elamur.ai/free/en/english/e/) · [F](https://md.dictionary.elamur.ai/free/en/english/f/) · [G](https://md.dictionary.elamur.ai/free/en/english/g/) · [H](https://md.dictionary.elamur.ai/free/en/english/h/) · [I](https://md.dictionary.elamur.ai/free/en/english/i/) · [J](https://md.dictionary.elamur.ai/free/en/english/j/) · [K](https://md.dictionary.elamur.ai/free/en/english/k/) · [L](https://md.dictionary.elamur.ai/free/en/english/l/) · [M](https://md.dictionary.elamur.ai/free/en/english/m/) · [N](https://md.dictionary.elamur.ai/free/en/english/n/) · **O** · [P](https://md.dictionary.elamur.ai/free/en/english/p/) · [Q](https://md.dictionary.elamur.ai/free/en/english/q/) · [R](https://md.dictionary.elamur.ai/free/en/english/r/) · [S](https://md.dictionary.elamur.ai/free/en/english/s/) · [T](https://md.dictionary.elamur.ai/free/en/english/t/) · [U](https://md.dictionary.elamur.ai/free/en/english/u/) · [V](https://md.dictionary.elamur.ai/free/en/english/v/) · [W](https://md.dictionary.elamur.ai/free/en/english/w/) · [X](https://md.dictionary.elamur.ai/free/en/english/x/) · [Y](https://md.dictionary.elamur.ai/free/en/english/y/) · [Z](https://md.dictionary.elamur.ai/free/en/english/z/)

453 words under O; 101–200 on this page.

Pages: [1](https://md.dictionary.elamur.ai/free/en/english/o/) · **2** · [3](https://md.dictionary.elamur.ai/free/en/english/o/page/3/) · [4](https://md.dictionary.elamur.ai/free/en/english/o/page/4/) · [5](https://md.dictionary.elamur.ai/free/en/english/o/page/5/)

- [offense](https://md.dictionary.elamur.ai/free/en/english/offense/) — An offense is a wrong that someone does, a bad action or a crime.
- [offensive](https://md.dictionary.elamur.ai/free/en/english/offensive/) — Rude or insulting, likely to upset people.
- [offensiveness](https://md.dictionary.elamur.ai/free/en/english/offensiveness/) — Offensiveness is the quality of being rude or hurtful, so that it upsets or insults people.
- [offer](https://md.dictionary.elamur.ai/free/en/english/offer/) — To offer is to say you will give something to someone, or to hold it out for them to take. — everyday · Jewish tradition
- [offereth](https://md.dictionary.elamur.ai/free/en/english/offereth/) — «offereth» means «offers», a form of «offer»: To offer is to say you will give something to someone, or to hold it out for them to take.
- [offering](https://md.dictionary.elamur.ai/free/en/english/offering/) — An offering is something you give, especially as a gift. — everyday · Jewish tradition
- [office](https://md.dictionary.elamur.ai/free/en/english/office/) — An office is a room or building where people work at desks, often with computers and papers. — everyday · Jewish tradition
- [officer](https://md.dictionary.elamur.ai/free/en/english/officer/) — An officer is a police officer, a person whose job is to keep people safe and make them obey the law. — everyday · Jewish tradition
- [official](https://md.dictionary.elamur.ai/free/en/english/official/) — Official means approved by people in charge, like a government, school or organisation.
- [officially](https://md.dictionary.elamur.ai/free/en/english/officially/) — Officially means in a way that is approved by people in charge, according to the rules or the law.
- [officiate](https://md.dictionary.elamur.ai/free/en/english/officiate/) — To officiate at a wedding, funeral or service is to lead it as a priest, minister or official.
- [officious](https://md.dictionary.elamur.ai/free/en/english/officious/) — Officious means too eager to give help or orders when nobody asked for them.
- [offshoot](https://md.dictionary.elamur.ai/free/en/english/offshoot/) — An offshoot is a branch or shoot that grows out from the main stem of a plant. — Jewish tradition
- [offshore](https://md.dictionary.elamur.ai/free/en/english/offshore/) — Offshore means in the sea, away from the coast.
- [offside](https://md.dictionary.elamur.ai/free/en/english/offside/) — In a position on the field that the rules don't allow, usually too far forward, ahead of the ball or the other team's last defender.
- [offspring](https://md.dictionary.elamur.ai/free/en/english/offspring/) — Offspring are the young of an animal or plant: its babies or seeds. — everyday · Jewish tradition
- [oft](https://md.dictionary.elamur.ai/free/en/english/oft/) — Oft means often, many times. — Jewish tradition
- [often](https://md.dictionary.elamur.ai/free/en/english/often/) — Often means many times. — everyday · Jewish tradition
- [oftentimes](https://md.dictionary.elamur.ai/free/en/english/oftentimes/) — Many times; often. — Jewish tradition
- [ogre](https://md.dictionary.elamur.ai/free/en/english/ogre/) — An ogre is a huge, frightening giant in stories who eats people.
- [ogress](https://md.dictionary.elamur.ai/free/en/english/ogress/) — An ogress is a female ogre, a huge, frightening giantess in stories who eats people.
- [oil](https://md.dictionary.elamur.ai/free/en/english/oil/) — A thick, slippery liquid that does not mix with water, from plants or animals, used in cooking: olive oil. — everyday · Jewish tradition
- [oilbird](https://md.dictionary.elamur.ai/free/en/english/oilbird/) — A brown, night-flying bird of South America and Trinidad that lives in caves, eats fruit and finds its way in the dark by clicking, a bit…
- [oily](https://md.dictionary.elamur.ai/free/en/english/oily/) — Covered with oil or containing a lot of oil: «oily hands», «oily fish».
- [oink](https://md.dictionary.elamur.ai/free/en/english/oink/) — An oink is the grunting sound a pig makes.
- [ointment](https://md.dictionary.elamur.ai/free/en/english/ointment/) — A smooth, greasy cream rubbed on the skin to heal cuts, burns, rashes or sore places. — everyday · Jewish tradition
- [oireachtas](https://md.dictionary.elamur.ai/free/en/english/oireachtas/) — The national parliament of Ireland, made of the President, the Dáil (lower house) and the Seanad (Senate).
- [ok](https://md.dictionary.elamur.ai/free/en/english/ok/) — All right; acceptable; good enough: «Is it OK if I sit here?».
- [okapi](https://md.dictionary.elamur.ai/free/en/english/okapi/) — An okapi is a shy African forest animal with a brown body and black-and-white stripes on its legs, like a zebra's.
- [okay](https://md.dictionary.elamur.ai/free/en/english/okay/) — Okay means all right, fine, not hurt or not upset: are you okay?
- [ola](https://md.dictionary.elamur.ai/free/en/english/ola/) — Not an English word on its own.
- [old](https://md.dictionary.elamur.ai/free/en/english/old/) — Old tells how long someone or something has lived or been: «Tom is 7 years old». — everyday · Jewish tradition
- [olden](https://md.dictionary.elamur.ai/free/en/english/olden/) — Olden means belonging to the long-ago past; «in the olden days» means a long time ago.
- [older](https://md.dictionary.elamur.ai/free/en/english/older/) — Older means having lived more years than someone else. — everyday · Jewish tradition
- [olfaction](https://md.dictionary.elamur.ai/free/en/english/olfaction/) — The sense of smell, or the act of smelling.
- [olive](https://md.dictionary.elamur.ai/free/en/english/olive/) — An olive is a small oval fruit, green or black, with a stone inside, that grows on olive trees and is eaten or pressed for oil. — everyday · Jewish tradition
- [olm](https://md.dictionary.elamur.ai/free/en/english/olm/) — An olm is a pale, blind salamander (an amphibian) that lives in dark underground cave waters in southern Europe, especially Slovenia and…
- [olympiad](https://md.dictionary.elamur.ai/free/en/english/olympiad/) — An olympiad is a contest where pupils solve hard problems, for example in maths, physics or chess.
- [olympian](https://md.dictionary.elamur.ai/free/en/english/olympian/) — Olympian means belonging to the gods who lived on Mount Olympus in Greek stories.
- [olympic](https://md.dictionary.elamur.ai/free/en/english/olympic/) — Olympic means about the Olympic Games, the biggest international sports competition, held every four years in summer and winter versions.
- [omega](https://md.dictionary.elamur.ai/free/en/english/omega/) — Omega is the last letter of the Greek alphabet, written Ω or ω.
- [omelet](https://md.dictionary.elamur.ai/free/en/english/omelet/) — An omelet is eggs beaten up and cooked flat in a pan, often with cheese or herbs.
- [omelette](https://md.dictionary.elamur.ai/free/en/english/omelette/) — An omelette is a dish of beaten eggs cooked flat in a frying pan, often folded over a filling such as cheese, ham or vegetables.
- [omen](https://md.dictionary.elamur.ai/free/en/english/omen/) — A sign or event that some people believe shows that something good or bad will happen in the future.
- [ominous](https://md.dictionary.elamur.ai/free/en/english/ominous/) — Ominous means showing that something bad is about to happen; it is a warning sign.
- [omission](https://md.dictionary.elamur.ai/free/en/english/omission/) — Something that has been left out or not done. — everyday · Jewish tradition
- [omit](https://md.dictionary.elamur.ai/free/en/english/omit/) — To leave something out, on purpose or by mistake. — everyday · Jewish tradition
- [omnibus](https://md.dictionary.elamur.ai/free/en/english/omnibus/) — A book or TV programme that puts several stories or episodes together in one.
- [omnipotent](https://md.dictionary.elamur.ai/free/en/english/omnipotent/) — Having power over everything, able to do all things. — Jewish tradition
- [omnivore](https://md.dictionary.elamur.ai/free/en/english/omnivore/) — An omnivore is an animal that eats both plants and other animals.
- [on](https://md.dictionary.elamur.ai/free/en/english/on/) — On means touching the top or side of something: on the table, on the wall. — everyday · Jewish tradition
- [once](https://md.dictionary.elamur.ai/free/en/english/once/) — Once means one time. — everyday · Jewish tradition
- [oncoming](https://md.dictionary.elamur.ai/free/en/english/oncoming/) — Coming towards you or moving nearer: «oncoming traffic», «an oncoming storm».
- [one](https://md.dictionary.elamur.ai/free/en/english/one/) — One is the number 1, the first and smallest whole number above zero. — everyday · Jewish tradition
- [oneida](https://md.dictionary.elamur.ai/free/en/english/oneida/) — A Native American people, one of the Six Nations of the Haudenosaunee (Iroquois Confederacy), from what is now New York State; also their…
- [ongoing](https://md.dictionary.elamur.ai/free/en/english/ongoing/) — Still happening and not finished yet. — Jewish tradition
- [onion](https://md.dictionary.elamur.ai/free/en/english/onion/) — A round vegetable with layers, papery brown, red or white skin and a strong smell and taste, used in cooking. — everyday · Jewish tradition
- [online](https://md.dictionary.elamur.ai/free/en/english/online/) — Connected to the internet or done on it: "online games". — everyday · Jewish tradition
- [onlooker](https://md.dictionary.elamur.ai/free/en/english/onlooker/) — An onlooker is a person who watches something happen but does not take part, especially an accident, fight or event in the street.
- [only](https://md.dictionary.elamur.ai/free/en/english/only/) — Only means no more than, or just one. — everyday · Jewish tradition
- [onomatopoeia](https://md.dictionary.elamur.ai/free/en/english/onomatopoeia/) — Onomatopoeia is when a word sounds like the noise it describes, such as buzz, bang, sizzle, hiss, splash, cuckoo and woof.
- [onondaga](https://md.dictionary.elamur.ai/free/en/english/onondaga/) — A Native American people of central New York State, one of the Six Nations of the Haudenosaunee (Iroquois Confederacy); also their language.
- [onset](https://md.dictionary.elamur.ai/free/en/english/onset/) — The onset of something is its start, especially of something bad or unpleasant.
- [onshore](https://md.dictionary.elamur.ai/free/en/english/onshore/) — On the land, not at sea, as in "onshore wind farms".
- [onside](https://md.dictionary.elamur.ai/free/en/english/onside/) — In football, rugby and hockey, onside means in a position where you are allowed to play the ball; it is the opposite of offside.
- [onslaught](https://md.dictionary.elamur.ai/free/en/english/onslaught/) — An onslaught is a fierce, sudden attack, when many people or things rush at once.
- [ontological](https://md.dictionary.elamur.ai/free/en/english/ontological/) — About what exists and how things are, the nature of being. — Jewish tradition
- [onward](https://md.dictionary.elamur.ai/free/en/english/onward/) — Onward means forward, going further on. — everyday · Jewish tradition
- [onyx](https://md.dictionary.elamur.ai/free/en/english/onyx/) — A stone with bands of color, often black and white, used as a gem. — Jewish tradition
- [ooh](https://md.dictionary.elamur.ai/free/en/english/ooh/) — Ooh is a sound people make to show surprise, delight, interest or admiration.
- [oolong](https://md.dictionary.elamur.ai/free/en/english/oolong/) — A kind of Chinese tea, partly oxidised, between green tea and black tea in taste and colour.
- [ooze](https://md.dictionary.elamur.ai/free/en/english/ooze/) — verb (of a thick liquid) To flow out slowly: «Honey oozed from the jar».
- [oozing](https://md.dictionary.elamur.ai/free/en/english/oozing/) — Oozing means slowly flowing or leaking out of something, like thick liquid.
- [opal](https://md.dictionary.elamur.ai/free/en/english/opal/) — An opal is a precious stone that shows flashing rainbow colours when you move it in the light.
- [opaque](https://md.dictionary.elamur.ai/free/en/english/opaque/) — Opaque means light cannot pass through it, so you cannot see through it, like wood or a brick wall.
- [open](https://md.dictionary.elamur.ai/free/en/english/open/) — To open is to move something so you can go in or see inside: open a door, open a box. — everyday · Jewish tradition
- [opener](https://md.dictionary.elamur.ai/free/en/english/opener/) — An opener is a tool for opening something, such as a tin opener, can opener or bottle opener.
- [opening](https://md.dictionary.elamur.ai/free/en/english/opening/) — An opening is a gap or hole that something can pass through. — everyday · Jewish tradition
- [openly](https://md.dictionary.elamur.ai/free/en/english/openly/) — Openly means in a way that everyone can see or hear, not secretly.
- [opera](https://md.dictionary.elamur.ai/free/en/english/opera/) — An opera is a play in which the actors sing almost all the words, with an orchestra playing music.
- [operate](https://md.dictionary.elamur.ai/free/en/english/operate/) — To operate a machine is to make it work or control it.
- [operatic](https://md.dictionary.elamur.ai/free/en/english/operatic/) — To do with opera, plays where all or most of the words are sung, with an orchestra.
- [operating](https://md.dictionary.elamur.ai/free/en/english/operating/) — Working or running, said of a machine or business.
- [operation](https://md.dictionary.elamur.ai/free/en/english/operation/) — In maths, an operation is a way of working with numbers: add, subtract, multiply or divide. — everyday · Jewish tradition
- [operative](https://md.dictionary.elamur.ai/free/en/english/operative/) — Working, in action: «The new system is now operative.».
- [operator](https://md.dictionary.elamur.ai/free/en/english/operator/) — A person who works a machine or equipment: «a crane operator».
- [opinion](https://md.dictionary.elamur.ai/free/en/english/opinion/) — An opinion is what you think or believe about something; it may not be the same as what others think. — everyday · Jewish tradition
- [opium](https://md.dictionary.elamur.ai/free/en/english/opium/) — A strong, illegal drug made from the juice of a kind of poppy, which makes people sleepy and is very addictive and dangerous.
- [opossum](https://md.dictionary.elamur.ai/free/en/english/opossum/) — An opossum is a North and South American marsupial about the size of a cat, with a pointed white face, bare ears and a long, bare tail…
- [opponent](https://md.dictionary.elamur.ai/free/en/english/opponent/) — A person or team that you play, compete or fight against.
- [opportunity](https://md.dictionary.elamur.ai/free/en/english/opportunity/) — An opportunity is a time or situation when it is possible to do something you want or need to do; a chance.
- [opposable](https://md.dictionary.elamur.ai/free/en/english/opposable/) — Able to be placed opposite and pressed against the other fingers, like a human thumb, so that the hand can grip and pick things up.
- [oppose](https://md.dictionary.elamur.ai/free/en/english/oppose/) — To oppose something is to be against it and try to stop it.
- [opposed](https://md.dictionary.elamur.ai/free/en/english/opposed/) — If you are opposed to something, you are against it. — everyday · Jewish tradition
- [opposing](https://md.dictionary.elamur.ai/free/en/english/opposing/) — Being against someone or something in a game, fight or argument (the opposing team). — everyday · Jewish tradition
- [opposite](https://md.dictionary.elamur.ai/free/en/english/opposite/) — The opposite is the thing that is as different as can be: up is the opposite of down. — everyday · Jewish tradition
- [opposition](https://md.dictionary.elamur.ai/free/en/english/opposition/) — Opposition is strong disagreement with a plan or idea, often shown by speaking or acting against it. — everyday · Jewish tradition
- [oppress](https://md.dictionary.elamur.ai/free/en/english/oppress/) — To oppress people is to treat them cruelly and unfairly, keeping them under hard control. — everyday · Jewish tradition
- [oppressed](https://md.dictionary.elamur.ai/free/en/english/oppressed/) — Treated in a cruel and unfair way by people with power, and not given freedom or rights. — everyday · Jewish tradition
- [oppression](https://md.dictionary.elamur.ai/free/en/english/oppression/) — Oppression is cruel and unfair treatment of people, keeping them down and taking away their freedom. — everyday · Jewish tradition