plural of backing band

present participle of back off

present participle of back out

present participle of back down

A prerecorded piece of music used to accompany a musician who sings live

present participle of piggy-back

present participle of back water

(baseball) Two home runs hit by consecutive batters

(telecommunications) The direct connection of the output of one telecommunications device to the input of another.

(travel, UK, Ireland) Any of a series of airline tickets, issued with overlapping travel dates, used to circumvent airfare minimum stay requirements.