Back in its adverbial senses. / Situated, located, or toward the rear; backward or in reverse; in return; again. / (UK, obsolete) False; pseudo-.

A surname.

(Caribbean, Jamaica) backing (financial or otherwise); support

Third-person singular simple present indicative form of back into

(Canada, US) At the back.

At that time, at the time referred to in the past.

(Chester) behind, at the back

(Britain) A group of musicians who accompany an artist at a live performance or on a recording. This can either be an established group, or else an ad hoc group assembled for the purpose.

present participle of back up

(Construction) A compressible material placed in a joint before applying sealant.