In the state of being active, functioning or operating.
Happening; taking place; being or due to be put into action.
(informal) Happening; taking place; being or due to be put into action.
Fitted; covering or being worn.
Of a stated part of something, oriented towards the viewer or other specified direction.
(informal) Acceptable, appropriate.
Possible; capable of being successfully carried out.
(informal) Destined; involved, doomed.
(informal) 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.
(informal) 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.
(obsolete) 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.
Covering.
Expressing figurative placement, burden, or attachment.
Denoting physical contact or interaction with an object, such as impact or application of force.
Denoting physical contact or interaction with an object, such as impact or application of force.
Denoting physical contact or interaction with an object, such as impact or application of force.
At or in (a certain region or location).
At or in (a certain region or location).
At or in (a certain region or location).
Near; adjacent to; alongside; just off.
Supported by (the specified part of itself).
Aboard (a mode of transport, especially public transport, or transport that one sits astride or uses while standing).
At the date or day of.
At a given time after the start of something; at.
Dealing with the subject of; about; concerning.
(informal) In the possession of.
Because of; due to; upon the basis of (something not yet confirmed as true).
At the time of (and often because of).
Arrived or coming into the presence 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).
In addition to; besides; indicating multiplication or succession in a series.
Indicating dependence or reliance.
Serving as a member of.
By virtue of; with the pledge of.
(informal) By virtue of; with the pledge of.
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).
Having as identical domain and codomain.
Having Vⁿ as domain and V as codomain, for the specified set V and some integer n.
Generated by.
Divided by.
(obsolete) Of.
(obsolete) At the peril of, or for the safety of.

To switch on.

Without.

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.

Esercita la tua pronuncia!

According to Victor Vassiliev, Arnold worked comparatively little on topology for topology's sake.