English Dictionary

on

/ɒn/

prep

Positioned at the upper surface of, touching from above. / Positioned at or resting against the outer surface of; attached to. / Expressing figurative placement or attachment.

The book is on the table.

意味（1）

Positioned at the upper surface of, touching from above.

A vase of flowers stood on the table.

意味（2）

Positioned at or resting against the outer surface of; attached to.

He had a scar on the side of his face.

意味（3）

Expressing figurative placement or attachment.

All of the responsibility is on him.

意味（4）

Denoting performance or action by contact with the surface, upper part, or outside of anything; hence, by means of; with.

to play on a violin or piano

意味（5）

At or in (a certain region or location).

The lighthouse that you can see is on the mainland.

意味（6）

Near; adjacent to; alongside.

The fleet is on the American coast.

意味（7）

Supported by (the specified part of itself).

A table can't stand on two legs.

意味（8）

So as to impart force to.

tug on the rope; push hard on the door

意味（9）

So as to impact; against.

I stubbed my toe on an old tree stump.

意味（10）

Covering.

He wore old shoes on his feet.

意味（11）

(with certain modes of transport, especially public transport) Inside (a vehicle) for the purpose of travelling.

on a bus, on a train, on a plane

意味（12）

At the date of.

Born on the 4th of July.

意味（13）

Some time during the day of.

On Sunday I'm busy. I'll see you on Monday.

意味（14）

At a given time after the start of something; at.

Smith scored again on twelve minutes, doubling Mudchester Rovers' lead.

意味（15）

Dealing with the subject of; about; concerning.

I was reading a book on history.

意味（16）

(informal) In the possession of.

I haven't got any money on me.

意味（17）

Because of, or due to.

to arrest someone on suspicion of bribery

意味（18）

Upon; at the time of (and often because of).

On Jack's entry, William got up to leave.

意味（19）

Paid for by.

The drinks are on me tonight, boys.

意味（20）

Indicating a means or medium.

I saw it on television.

意味（21）

Indicating the target of, or thing affected by, an event or action.

They planned an attack on London.

意味（22）

Toward; for; indicating the object of an emotion.

Have pity or compassion on him.

意味（23）

(especially Ireland) Indicating the person experiencing an emotion, cold, thirst, hunger, etc.

'[…] the hunger is on me to carry my sword in distant places.' Mynyddog bowed his head.

意味（24）

Indicating a means of subsistence.

They lived on ten dollars a week.

意味（25）

Engaged in or occupied with (an action or activity).

He's on his lunch break.

意味（26）

Regularly taking (a drug).

You've been on these antidepressants far too long.

意味（27）

Under the influence of (a drug).

He's acting crazy because he's on crack right now.

意味（28）

(mathematics) Having identical domain and codomain.

a function on

意味（29）

(mathematics) Having Vⁿ as domain and V as codomain, for some set V and integer n.

an operator on

意味（30）

(mathematics) Generated by.

the free group on four letters

意味（31）

In addition to; besides; indicating multiplication or succession in a series.

heaps on heaps of food

意味（32）

(obsolete, regional) of

Be not jealous on me.

意味（33）

Indicating dependence or reliance.

I depended on them for assistance.

意味（34）

(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: …

意味（35）

Serving as a member of.

He is on the jury; I am on the committee.

意味（36）

By virtue of; with the pledge of.

He affirmed or promised on his word, or on his honour.

意味（37）

To the account or detriment of; denoting imprecation or invocation, or coming to, falling, or resting upon.

On us be all the blame.

意味（38）

(especially when numbers of combatants or competitors are specified) Against; in opposition to.

The fight was three on one, and he never stood a chance.