| n. pl.   com·pa·nies  1.  A group of persons: a company of scientists. 2.  a.  One's companions or associates: moved in fast company; is known by the company she keeps. b.  A guest or guests: had company for the weekend. c.  The state of friendly companionship; fellowship: was grateful for her company; friends who finally parted company. 3.  a.  A business enterprise; a firm. b.  A partner or partners not specifically named in a firm's title: Lee Rogers and Company. 4.  A troupe of dramatic or musical performers: a repertory company. 5.  a.  A subdivision of a military regiment or battalion that constitutes the lowest administrative unit. It is usually under the command of a captain and is made up of at least two platoons. b.  A unit of firefighters. 6.  A ship's crew and officers. See Usage Note at  collective noun. v.  com·pa·nied, com·pa·ny·ing, com·pa·nies  v.tr.  To accompany or associate with. v.intr.  To keep company with someone; associate. [Middle English compainie, from Old French compaignie, from Vulgar Latin *compānia, from *compāniō, companion; see  COMPANION1.] | 
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