That is either fully on or fully off, and is used to toggle a status between on and off; as in an on-off switch / That fluctuates between a positive and negative status, as an on-off relationship

Alternative form of on-off

In a direction away from the speaker or other reference point. / Into a state of non-operation or non-existence. / So as to remove or separate, or be removed or separated. / (theater) Offstage.

Inoperative, disabled. / Cancelled; not happening. / Not fitted; not being worn. / Rancid, rotten, gone bad. / (by extension, Australia, slang) Disgusting, repulsive, abhorrent.

Not positioned upon, or away from a position upon. / Detached, separated, excluded or disconnected from; away from a position of attachment or connection to.

(transitive, slang) To kill. / (transitive, Singapore, Philippines) To switch off.

(usually in phrases such as 'from the off', 'at the off', etc.) Beginning; starting point.

Alternative form of on and off / (nautical) On different tacks, now toward, and now away from, the land.

(title) Officer. / Office.

Abbreviation of office. / Abbreviation of offence. / Abbreviation of offender.