ensemble

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A unit or group of complementary parts that contribute to a single effect, especially:
2. n. A coordinated outfit or costume.
3. n. A coordinated set of furniture.
4. n. A group of musicians, singers, dancers, or actors who perform together: an improvisational theater ensemble; a woodwind ensemble.
5. n. Music A work for two or more vocalists or instrumentalists.
6. n. Music The performance of such a work.

Century Dictionary and Cyclopedia

1. Together; all at once; simultaneously.
2. n. The union of parts in a whole; all the parts of anything taken together, so that each part is considered only in relation to the whole; specifically, the general effect of a work of art, piece of music, drama, etc.
3. n. In music, the union of all the performers in a concerted composition, as in a chorus with full orchestral accompaniment.
4. n. In mathematics, a manifold or collection of elements, discrete or continuous, finite, infinite, or superinfinite. The elements of the ensemble are usually termed its points. The integrant parts of an ensemble are all the other ensembles whose elements are elements of it. Two ensembles whose elements are capable of being put into a one-to-one correspondence with one another are said to have the same value or to be equivalent. The first value is the smallest infinite value, or that of the ensemble of positive whole numbers. A linear ensemble is one whose elements can be brought into correspondence each with a different point of one line. A derived ensemble is one which consists of all the limits of elements in a primitive ensemble. An ensemble is said to be condensed within a certain interval if there are elements of the ensemble in every part of the interval, however small. Disconnected ensembles are ensembles which have no common element. A definite ensemble is an ensemble such that every object is either determined to be an element of it or determined not to be so, and no object is determined in both ways. An ordered ensemble is one in which the elements have a definite succession. A perfect ensemble is one which is its own derived ensemble. See number.
5. In music, same as concerted: as, an ensemble passage or work.

Wiktionary

1. n. a group of separate things that contribute to a coordinated whole
2. n. a coordinated costume or outfit; a suit
3. n. a group of musicians, dancers, actors, etc who perform together; e.g. the chorus of a ballet company
4. n. music a piece for several instrumentalists or vocalists

GNU Webster's 1913

1. n. The whole; all the parts taken together.
2. adv. All at once; together.

WordNet 3.0

1. n. a group of musicians playing or singing together
2. n. a cast other than the principals
3. n. a coordinated outfit (set of clothing)
4. n. an assemblage of parts or details (as in a work of art) considered as forming a whole
5. n. the chorus of a ballet company