What is the meaning of On?

In the state of being active, functioning or operating.

Happening; taking place; being or due to be put into action.

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).

Fitted; covering or being worn.

Of a stated part of something, oriented towards the viewer or other specified direction.

Acceptable, appropriate.

Possible; capable of being successfully carried out.

Having reached a base as a runner and being positioned there, awaiting further action from a subsequent batter.

Within the half of the field on the same side as the batsman's legs; the left side for a right-handed batsman.

Of a ball, being the next in sequence to be potted, according to the rules of the game.

Acting in character.

Performative or funny in a wearying manner.

Menstruating.

To an operating state.

So as to cover or be fitted.

Along, forwards (continuing an action).

In continuation, at length.

Later.

Of betting odds, denoting a better-than-even chance. See also odds-on.

Positioned at the upper surface of, touching from above.

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

Expressing figurative placement, burden, or attachment.

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

At or in (a certain region or location).

Near; adjacent to; alongside; just off.

Supported by (the specified part of itself).

So as to impart force to.

So as to impact; against.

Covering.

Inside (a vehicle) for the purpose of travelling.

At the date of.

Sometime during the day of.

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

Dealing with the subject of; about; concerning.

In the possession of.

Because of; due to; upon the basis of (something not yet confirmed as true).

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

Paid for by.

Indicating a means or medium.

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

Toward; for; indicating the object of an emotion.

Indicating the person experiencing an emotion, cold, thirst, hunger, etc.

Indicating the position that one has reached in a sequence.

Indicating a means of subsistence.

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

Regularly taking (a drug).

Under the influence of (a drug, or something that is causing drug-like effects).

Having identical domain and codomain.

Having $V^{n}$ as domain and V as codomain, for some set V and integer n.

Generated by.

Divided by.

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

Indicating dependence or reliance.

At the peril of, or for the safety of.

Serving as a member of.

By virtue of; with the pledge of.

Ellipsis of I swear on: on my life, on God, on everything, etc.

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

Against; in opposition to.

According to, from the standpoint of; expressing what must follow, whether accepted or not, if a given premise or system is assumed true.

In a position of being able to pot (a given ball).

To switch on.

Without.(Can we add an example for this sense?)

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.

Alternative form of un (and)

the

A letter of the Juǀ'hoan alphabet, written in the Latin script.

ten

right

(there) is