Once

Definition of once:

part of speech: adverb

A single time: at a former time.

part of speech: adjective

At one time; a single time.

part of speech: noun

One time.

part of speech: adverb

At one time; formerly; as, once upon a time; this was once my home; one time only; as, read it over once; at any time; ever; as, if once they lose heart, their cause will be lost.

part of speech: noun

One time; at once, together; immediately; as, do not all speak at once; do it at once.

Usage examples for once:

• This must be looked to at once "The Strange Adventures of Eric Blackburn", Harry Collingwood.

• " Let's go," he said at once "In the Wilderness", Robert Hichens.

• Not once will I do it." "An Orkney Maid", Amelia Edith Huddleston Barr.