A husband or wife, especially the spouse of a monarch. A companion or partner. A ship accompanying another in travel. Partnership; association: governed in consort with her advisers. A group; a company: a consort of fellow diplomats. Music An instrumental ensemble. Music An ensemble using instruments of the same family. To keep company; associate: a politician known to consort with gangsters. To be in accord or agreement. To unite in company; associate. Obsolete To escort; accompany. Obsolete To espouse.