all the parts of a thing taken together, so that each part is considered only in relation to the whole.

the entire costume of an individual, esp. when all the parts are in harmony

She was wearing a beautiful ensemble by one of the French designers.

a set of furniture.

Music .

the united performance of an entire group of singers, musicians, etc.

the group so performing

a string ensemble.

a group of supporting entertainers, as actors, dancers, and singers, in a theatrical production.

adverb

all at once , altogether , as a body , as a group , as a whole , as one , at once , en masse , in concert

noun

aggregate , assemblage , band , cast , choir , chorus , company , composite , entirety , gathering , glee club , group , octet , orchestra , organization , outfit , quartet , quintet , set , sextet , sum , total , totality , trio , troupe , whole , coordinates , costume , garb * , get-up , suit , togs , altogether , collection , getup , suite