Noun

• S: (n) accompaniment, concomitant, attendant, co-occurrence (an event or situation that happens at the same time as or in connection with another)
• S: (n) accompaniment, musical accompaniment, backup, support (a musical part (vocal or instrumental) that supports or provides background for other musical parts)
• S: (n) complement, accompaniment (something added to complete or embellish or make perfect) "a fine wine is a perfect complement to the dinner"; "wild rice was served as an accompaniment to the main dish"
• S: (n) escort, accompaniment (the act of accompanying someone or something in order to protect them)
• direct hyponym / full hyponym
• S: (n) convoy (the act of escorting while in transit)
• direct hypernym / inherited hypernym / sister term
• derivationally related form