Entry Word: companion

Function: noun

Meaning: 1 a person frequently seen in the company of another <the companions of one's youth> — see associate 1
2 one that accompanies another for protection, guidance, or as a courtesy <took a companion to the ball> — see escort
3 either of a pair matched in one or more qualities <a sketch that is a companion to the original drawing> — see mate 1
4 something that is found along with something else <the report and its companion recommendations> — see accompaniment