[Elamur Dictionary](https://md.dictionary.elamur.ai/free/en/) · [this page in HTML](https://dictionary.elamur.ai/free/en/english/o/)

[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; 1–100 on this page.

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

- [oaf](https://md.dictionary.elamur.ai/free/en/english/oaf/) — A clumsy or stupid person who is awkward and slow.
- [oak](https://md.dictionary.elamur.ai/free/en/english/oak/) — An oak is a big tree with hard wood that can live for hundreds of years. — everyday · Jewish tradition
- [oaken](https://md.dictionary.elamur.ai/free/en/english/oaken/) — Made of oak wood.
- [oar](https://md.dictionary.elamur.ai/free/en/english/oar/) — An oar is a long pole with a flat blade at one end, used to row a boat. — everyday · Jewish tradition
- [oas](https://md.dictionary.elamur.ai/free/en/english/oas/) — OAS: the Organization of American States, a group of countries in North, Central and South America that work together.
- [oasis](https://md.dictionary.elamur.ai/free/en/english/oasis/) — A place in a desert where there is water, so plants and trees such as date palms can grow.
- [oat](https://md.dictionary.elamur.ai/free/en/english/oat/) — A kind of cereal plant grown for its grain.
- [oath](https://md.dictionary.elamur.ai/free/en/english/oath/) — An oath is a serious promise, often in front of others or in a court, that you will tell the truth or do something: "the witness took an… — everyday · Jewish tradition
- [oatmeal](https://md.dictionary.elamur.ai/free/en/english/oatmeal/) — Oats that have been crushed or ground, used to make porridge, oatcakes and biscuits.
- [obedience](https://md.dictionary.elamur.ai/free/en/english/obedience/) — Doing what you are told by someone in charge, or following rules and laws. — everyday · Jewish tradition
- [obedient](https://md.dictionary.elamur.ai/free/en/english/obedient/) — Doing what you are told by a parent, teacher, rule or owner. — everyday · Jewish tradition
- [obeisance](https://md.dictionary.elamur.ai/free/en/english/obeisance/) — A low bow or other sign of respect to someone important. — everyday · Jewish tradition
- [oberon](https://md.dictionary.elamur.ai/free/en/english/oberon/) — The king of the fairies in old European folklore and stories.
- [obesity](https://md.dictionary.elamur.ai/free/en/english/obesity/) — The condition of having much more body fat than is healthy, which can lead to illnesses such as diabetes and heart disease.
- [obey](https://md.dictionary.elamur.ai/free/en/english/obey/) — To do what a person, rule or law tells you to do. — everyday · Jewish tradition
- [obituary](https://md.dictionary.elamur.ai/free/en/english/obituary/) — A piece of writing in a newspaper or website, after someone has died, telling about their life and what they did.
- [object](https://md.dictionary.elamur.ai/free/en/english/object/) — An object (OB-ject) is a thing you can see and touch that is not alive. — everyday · Jewish tradition
- [objection](https://md.dictionary.elamur.ai/free/en/english/objection/) — An objection is a reason you give for not agreeing with something or not liking a plan. — everyday · Jewish tradition
- [objectionable](https://md.dictionary.elamur.ai/free/en/english/objectionable/) — Unpleasant or offensive, so that people object to it.
- [objective](https://md.dictionary.elamur.ai/free/en/english/objective/) — An aim or goal you are trying to reach (the lesson objective).
- [oblation](https://md.dictionary.elamur.ai/free/en/english/oblation/) — A gift or offering made to God, often of grain or food, brought to the altar. — Jewish tradition
- [obligation](https://md.dictionary.elamur.ai/free/en/english/obligation/) — An obligation is something you must do because a rule, a promise or your duty says so.
- [obligatorily](https://md.dictionary.elamur.ai/free/en/english/obligatorily/) — Because a rule or law says you must; in a way that is required, not a choice.
- [obligatory](https://md.dictionary.elamur.ai/free/en/english/obligatory/) — Obligatory means something you must do because a rule or law says so; it is not a free choice.
- [oblige](https://md.dictionary.elamur.ai/free/en/english/oblige/) — To oblige someone means to force them to do something by law, a rule or duty.
- [obliged](https://md.dictionary.elamur.ai/free/en/english/obliged/) — Obliged means having to do something because of a rule, law or duty: You are obliged to wear a seat belt.
- [oblique](https://md.dictionary.elamur.ai/free/en/english/oblique/) — Oblique means slanting, not straight up and not flat; at an angle. — everyday · Jewish tradition
- [obliterated](https://md.dictionary.elamur.ai/free/en/english/obliterated/) — Destroyed completely so that nothing is left.
- [oblivion](https://md.dictionary.elamur.ai/free/en/english/oblivion/) — The state of being completely forgotten: the old song fell into oblivion.
- [oboe](https://md.dictionary.elamur.ai/free/en/english/oboe/) — An oboe is a woodwind musical instrument shaped like a long thin tube, played by blowing through a double reed, which makes a clear…
- [oboist](https://md.dictionary.elamur.ai/free/en/english/oboist/) — A person who plays the oboe, a woodwind instrument with a double reed.
- [obscene](https://md.dictionary.elamur.ai/free/en/english/obscene/) — Obscene means very rude and shocking, especially about sex or the body, and not acceptable in public.
- [obscenity](https://md.dictionary.elamur.ai/free/en/english/obscenity/) — A very rude or offensive word, especially a swear word.
- [obscure](https://md.dictionary.elamur.ai/free/en/english/obscure/) — Not well known (an obscure singer, an obscure village). — everyday · Jewish tradition
- [obscurity](https://md.dictionary.elamur.ai/free/en/english/obscurity/) — The state of being hidden, unknown or unclear. — everyday · Jewish tradition
- [observable](https://md.dictionary.elamur.ai/free/en/english/observable/) — Observable means able to be seen or noticed.
- [observance](https://md.dictionary.elamur.ai/free/en/english/observance/) — Following or obeying a law, rule or custom: «observance of the rules».
- [observation](https://md.dictionary.elamur.ai/free/en/english/observation/) — Observation is watching something carefully to learn about it.
- [observatory](https://md.dictionary.elamur.ai/free/en/english/observatory/) — An observatory is a building with big telescopes and instruments for watching and studying stars, planets and space.
- [observe](https://md.dictionary.elamur.ai/free/en/english/observe/) — To observe is to watch something carefully to learn about it. — everyday · Jewish tradition
- [observed](https://md.dictionary.elamur.ai/free/en/english/observed/) — Watched or looked at carefully, often to learn something. — everyday · Jewish tradition
- [observer](https://md.dictionary.elamur.ai/free/en/english/observer/) — A person who watches something carefully, often to learn or to report.
- [obsessed](https://md.dictionary.elamur.ai/free/en/english/obsessed/) — Thinking about something or someone all the time, so it fills your mind.
- [obsidian](https://md.dictionary.elamur.ai/free/en/english/obsidian/) — Obsidian is a hard, shiny black (or dark) natural glass that forms when lava from a volcano cools very quickly.
- [obsolete](https://md.dictionary.elamur.ai/free/en/english/obsolete/) — Obsolete means no longer used because something newer or better has replaced it.
- [obstacle](https://md.dictionary.elamur.ai/free/en/english/obstacle/) — Something in your way that stops you or makes it hard to go forward. — everyday · Jewish tradition
- [obstinacy](https://md.dictionary.elamur.ai/free/en/english/obstinacy/) — The state of refusing to change your mind or give in, even when you should.
- [obstinate](https://md.dictionary.elamur.ai/free/en/english/obstinate/) — Stubborn; refusing to change your mind or to do as you are told. — everyday · Jewish tradition
- [obstinately](https://md.dictionary.elamur.ai/free/en/english/obstinately/) — In a stubborn way, refusing to change or give way. — Jewish tradition
- [obstruct](https://md.dictionary.elamur.ai/free/en/english/obstruct/) — To block a road, path, pipe or opening so things cannot pass.
- [obstruction](https://md.dictionary.elamur.ai/free/en/english/obstruction/) — An obstruction is something that blocks a road, path, pipe or passage so that things cannot get through.
- [obtain](https://md.dictionary.elamur.ai/free/en/english/obtain/) — To get something, especially by effort or by asking. — everyday · Jewish tradition
- [obtainable](https://md.dictionary.elamur.ai/free/en/english/obtainable/) — Obtainable means able to be got or bought: "the tickets are obtainable from the office".
- [obtuseness](https://md.dictionary.elamur.ai/free/en/english/obtuseness/) — Slowness to understand things; not noticing what is obvious.
- [obviate](https://md.dictionary.elamur.ai/free/en/english/obviate/) — To remove a need or a problem, so that something is no longer necessary, as in "This obviates the need for…".
- [obviating](https://md.dictionary.elamur.ai/free/en/english/obviating/) — Removing a need or problem, so that something is no longer necessary.
- [obvious](https://md.dictionary.elamur.ai/free/en/english/obvious/) — Easy to see, notice or understand; clear to everyone. — everyday · Jewish tradition
- [obviously](https://md.dictionary.elamur.ai/free/en/english/obviously/) — In a way that is easy to see or understand; clearly. — everyday · Jewish tradition
- [occasion](https://md.dictionary.elamur.ai/free/en/english/occasion/) — A particular time when something happens (on this occasion). — everyday · Jewish tradition
- [occasional](https://md.dictionary.elamur.ai/free/en/english/occasional/) — Occasional means happening sometimes, but not often or regularly.
- [occasionally](https://md.dictionary.elamur.ai/free/en/english/occasionally/) — Occasionally means sometimes, but not often or regularly.
- [occasions](https://md.dictionary.elamur.ai/free/en/english/occasions/) — Times when something happens: «on three occasions» means three times. — everyday · Jewish tradition
- [occident](https://md.dictionary.elamur.ai/free/en/english/occident/) — The Occident is the Western part of the world, meaning Europe and the countries settled from it.
- [occlusion](https://md.dictionary.elamur.ai/free/en/english/occlusion/) — A blocking or closing of a tube, pipe or blood vessel.
- [occult](https://md.dictionary.elamur.ai/free/en/english/occult/) — Hidden, secret, or magical, and known only to a few. — Jewish tradition
- [occultism](https://md.dictionary.elamur.ai/free/en/english/occultism/) — Belief in or study of hidden or magical powers. — Jewish tradition
- [occultist](https://md.dictionary.elamur.ai/free/en/english/occultist/) — A person who studies or practices hidden or magical arts. — Jewish tradition
- [occupant](https://md.dictionary.elamur.ai/free/en/english/occupant/) — An occupant is a person who lives in a house or flat, or who is in a room, seat or car at a certain time.
- [occupation](https://md.dictionary.elamur.ai/free/en/english/occupation/) — An occupation is a job or the kind of work a person does. — everyday · Jewish tradition
- [occupational](https://md.dictionary.elamur.ai/free/en/english/occupational/) — To do with a person's job or work.
- [occupied](https://md.dictionary.elamur.ai/free/en/english/occupied/) — Being used by someone, not free (the toilet is occupied, an occupied seat). — everyday · Jewish tradition
- [occupy](https://md.dictionary.elamur.ai/free/en/english/occupy/) — To live in or use a building, room or space. — everyday · Jewish tradition
- [occur](https://md.dictionary.elamur.ai/free/en/english/occur/) — To happen, especially without being planned. — everyday · Jewish tradition
- [occurrence](https://md.dictionary.elamur.ai/free/en/english/occurrence/) — Something that happens; an event. — everyday · Jewish tradition
- [ocean](https://md.dictionary.elamur.ai/free/en/english/ocean/) — The huge body of salt water that covers most of the Earth.
- [oceanic](https://md.dictionary.elamur.ai/free/en/english/oceanic/) — To do with the ocean or living in the ocean.
- [ocelot](https://md.dictionary.elamur.ai/free/en/english/ocelot/) — An ocelot is a wild cat about twice the size of a pet cat, with spotted and striped fur, living in the forests of Central and South America.
- [oct](https://md.dictionary.elamur.ai/free/en/english/oct/) — Oct.
- [october](https://md.dictionary.elamur.ai/free/en/english/october/) — October is the tenth month of the year.
- [octopod](https://md.dictionary.elamur.ai/free/en/english/octopod/) — An animal with eight arms or legs, especially an octopus.
- [octopus](https://md.dictionary.elamur.ai/free/en/english/octopus/) — A sea animal with a soft, round body and eight long arms covered in suckers.
- [odd](https://md.dictionary.elamur.ai/free/en/english/odd/) — An odd number cannot be split into two equal whole groups, like 1, 3, 5 or 7.
- [oddball](https://md.dictionary.elamur.ai/free/en/english/oddball/) — A person who behaves in a strange or unusual way.
- [oddity](https://md.dictionary.elamur.ai/free/en/english/oddity/) — A strange or unusual person, thing or event.
- [oddly](https://md.dictionary.elamur.ai/free/en/english/oddly/) — Oddly means in a strange or unusual way.
- [ode](https://md.dictionary.elamur.ai/free/en/english/ode/) — A poem that praises or speaks to someone or something, often in a grand, serious style.
- [odious](https://md.dictionary.elamur.ai/free/en/english/odious/) — Odious means very unpleasant, hateful, so that people cannot bear it. — everyday · Jewish tradition
- [odor](https://md.dictionary.elamur.ai/free/en/english/odor/) — An odor is a smell, especially a strong or pleasant one.
- [odorous](https://md.dictionary.elamur.ai/free/en/english/odorous/) — Odorous means having a smell, usually a pleasant or strong one.
- [odour](https://md.dictionary.elamur.ai/free/en/english/odour/) — An odour is a smell, often an unpleasant one: "a strange odour came from the bin". — everyday · Jewish tradition
- [odourless](https://md.dictionary.elamur.ai/free/en/english/odourless/) — Odourless means having no smell at all.
- [odyssey](https://md.dictionary.elamur.ai/free/en/english/odyssey/) — A long, exciting journey full of adventures and difficulties.
- [oesophagus](https://md.dictionary.elamur.ai/free/en/english/oesophagus/) — The oesophagus is the muscular tube that carries food and drink from your mouth and throat down to your stomach.
- [of](https://md.dictionary.elamur.ai/free/en/english/of/) — Of links a part to the whole it belongs to: a piece of cake, 3 of the apples. — everyday · Jewish tradition
- [off](https://md.dictionary.elamur.ai/free/en/english/off/) — Off means away from a surface or from a place: take it off the table. — everyday · Jewish tradition
- [offence](https://md.dictionary.elamur.ai/free/en/english/offence/) — An offence is a crime or an act that breaks a law or rule. — everyday · Jewish tradition
- [offend](https://md.dictionary.elamur.ai/free/en/english/offend/) — To make someone upset, hurt or annoyed by what you say or do. — everyday · Jewish tradition
- [offended](https://md.dictionary.elamur.ai/free/en/english/offended/) — Feeling hurt, upset or insulted by what someone said or did. — everyday · Jewish tradition
- [offender](https://md.dictionary.elamur.ai/free/en/english/offender/) — A person who has broken the law or done a crime. — everyday · Jewish tradition
- [offending](https://md.dictionary.elamur.ai/free/en/english/offending/) — Offending means upsetting someone or making them feel hurt or insulted.