ON

adjective

1. not comparable In the state of being active, functioning or operating. All the lights are on, so they must be home.
2. not comparable Happening; taking place; being or due to be put into action. We had to ration our food because there was a war on.
3. informal, not comparable Of a person, used to express agreement to or acceptance of a proposal or challenge made by that person; most commonly with subject “you” (see you're on). "Five bucks says the Cavs win tonight." ―"You're on!"
4. not comparable Fitted; covering or being worn. Your feet will soon warm up once your socks are on.
5. not comparable, postpositional Of a stated part of something, oriented towards the viewer or other specified direction. The photograph shows the UFO side on.
6. UK, informal, not comparable Acceptable, appropriate. It's not fair to do that – it's just not on.
7. not comparable Possible; capable of being successfully carried out. Climbing up that steep ridge isn't on. We'll have to find another route.
8. not comparable Available; remaining. Smith is 25 points ahead with only 23 on.
9. informal, not comparable Having reached a base as a runner and being positioned there, awaiting further action from a subsequent batter. With one out and no men on, Tristen Carranza belted a ball to the opposite field for a solo home run to put the NM State deficit at just 2-1.
10. not comparable Within the half of the field on the same side as the batsman's legs; the left side for a right-handed batsman. The captain moved two fielders to the on side.
11. not comparable, postpositional Of a ball, being the next in sequence to be potted, according to the rules of the game. If the player fails to hit the ball on, it's a foul.
12. not comparable Acting in character.
13. informal, not comparable Performative or funny in a wearying manner. He always has to be on, it's so exhausting.
14. euphemistic, not comparable Menstruating. It still gets in the way of her doing things like swimming, and she avoids sleepovers when she's "on".

adverb

1. not comparable To an operating state. turn the television on
2. not comparable So as to cover or be fitted. The lid wasn't screwed on properly.
3. not comparable Along, forwards (continuing an action), onwards. The policeman moved the tramp on.
4. not comparable In continuation, at length. and so on
5. not comparable Later. Ten years on, nothing had changed in the village.
6. not comparable Of betting odds, denoting a better-than-even chance. See also odds-on. That horse is twenty-to-one on, so you need to stake twenty pounds just to win one pound.
7. not comparable Of a ball, into a pottable position. The black was previously unavailable, but in potting that red, he's now pushed the black on.

preposition

1. Positioned at the upper surface of, touching from above. A vase of flowers stood on the table.
2. Positioned at or resting against the outer surface of; attached to. He had a scar on the side of his face.
3. Covering. He wore old shoes on his feet.
4. At or in (a geographical location or position). The lighthouse that you can see is on the mainland.
5. At (a relative spatial position). We live on the edge of the city.
6. Near; adjacent to; alongside; just off. The fleet is on the American coast.
7. Aboard (a mode of transport, especially public transport, or transport that one sits astride or uses while standing). on a bus, on a train, on a plane, on a ferry, on a yacht
8. In the direction of (some part of one's vessel), to within 45 degrees. A ship was sighted on the port quarter.
9. Expressing figurative placement, burden, or attachment. All of the responsibility is on him.
10. With verbs describing an action of pushing, pulling, pressing, etc., designates the thing to which force is applied. tug on the rope; push hard on the door
11. With verbs describing an action of hitting, rubbing, scratching, binding against, etc., designates the thing impacted or contacted. I stubbed my toe on an old tree stump.
12. Denoting performance or action by contact with the surface, upper part, or outside of anything By means of; with. to play on a violin or piano
13. Supported by (the specified part of itself). A table can't stand on two legs.
14. UK At (a certain value or level). The Tories are on twenty-five percent in this constituency.
15. At (a certain position within a sequence). I'm on question four.
16. At or during the date or day of. Born on the 4th of July.
17. UK, especially At (a given time after the start of something). Smith scored again on twelve minutes, doubling Mudchester Rovers' lead.
18. At (an instant or cusp). on the stroke of midnight; on the "B" of "Bang!"
19. Dealing with the subject of; about; concerning. I was reading a book on history.
20. Indicating a means or medium. I saw it on television.
21. Indicating the target of, or thing affected by, an event or action. They planned an attack on London.
22. informal In the possession of. I haven't got any money on me.
23. Because of; upon the basis of (something not yet confirmed as true). to arrest someone on suspicion of bribery
24. At the time of (and often because of). On Jack's entry, William got up to leave.
25. Arrived or coming into the presence of. I need to get my planting done, as the season will soon be on us.
26. Paid for by. The drinks are on me tonight, boys.
27. Toward; for; indicating the object of an emotion. Have pity or compassion on him.
28. Ireland, especially Indicating the person experiencing an emotion, cold, thirst, hunger, etc. I had a terrible thirst on me.
29. Indicating a means of subsistence or sustenance. They lived on ten dollars a week.
30. Engaged in or occupied with (an action or activity). He's on his lunch break.
31. Regularly taking (a drug). You've been on these antidepressants far too long.
32. Under the influence of (a drug, or something that is causing drug-like effects). He's acting crazy because he's on crack right now.
33. In addition to; besides; indicating multiplication or succession in a series. heaps on heaps of food
34. Indicating dependence or reliance. I depended on them for assistance.
35. Serving as a member of. He is on the jury; I am on the committee.
36. By virtue of; with the pledge of. He affirmed or promised on his word, or on his honour.
37. abbreviation, ellipsis, informal Ellipsis of I swear on: on my life, on God, on everything, etc.I swear on
38. To the account or detriment of; denoting imprecation or invocation, or coming to, falling, or resting upon. On us be all the blame.
39. Against; in opposition to. The fight was three on one, and he never stood a chance.
40. According to, from the standpoint of; (expressing what must follow, whether accepted or not, if a given premise or system is assumed true). On naturalism, it is therefore difficult to find a ground for ultimate moral hope.
41. In a position of being able to pot (a given ball). All the way around the table, off four cushions, and ... and he's on the black!
42. Having as identical domain and codomain. a function on #92;mathbb#123;R#125;
43. Having Vⁿ as domain and V as codomain, for the specified set V and some integer n. an operator on #92;mathbb#123;Z#125;
44. Generated by. the free group on four letters
45. Quebec Divided by. Twenty on three.
46. dialectal, obsolete, regional Of. I never seen 'im, and that's the truth on it.
47. obsolete At the peril of, or for the safety of. Hence on thy life: the captive maid is mine; / Whom not for price or pray'rs I will reſign: [...]

Similar: apropos, as for, due to

verb ons · oning · onning · oned · onned

1. Malaysia, Nigeria, Philippines, Singapore, colloquial, transitive To switch on. Can you on the light?

preposition ohn

1. Scotland, UK, dialectal Without.

noun

1. In the Japanese language, a pronunciation, or reading, of a kanji character that was originally based on the character's pronunciation in Chinese, contrasted with kun. Most kanji have two kinds of reading, called "on" and "kun".

proper noun

1. abbreviation, initialism Initialism of Old Norse.Old Norse
2. abbreviation Abbreviation of Ontario: a province of Canada.Ontario

proper noun

1. Synonym of Heliopolis (“ancient Egyptian city”).