<p><strong>Noun</strong></p><ul><li>(plural) A group of persons singing in unison.</li><li>(in an opera, oratorio, etc.) Such a group singing choral parts in connection with soloists or individual singers.</li><li>A piece of music for singing in unison.</li><li>A part of a song that recurs at intervals, usually following each verse; refrain.</li><li>Simultaneous utterance in singing, speaking, shouting, etc.</li><li>The sounds so uttered: a chorus of jeers.</li><li>(in a musical show) A company of dancers and singers.</li><li>The singing, dancing, or songs performed by such a company.</li><li>(in ancient Greece) A lyric poem, believed to have been in dithyrambic form, that was sung and danced to, originally as a religious rite, by a company of persons.</li><li>An ode or series of odes sung by a group of actors in ancient Greek drama.</li><li>The group of actors that performed the chorus and served as major participants in, commentators on, or as a supplement to the main action of the drama.</li><li>(Theater) A group of actors or a single actor having a function similar to that of the Greek chorus, as in Elizabethan drama.</li><li>The part of a play performed by such a group or individual.</li></ul><p><strong>Verb</strong></p><ul><li>(used with or without object) To sing or speak in chorus.</li></ul>