"accompaniment" in the noun sense
1. accompaniment, concomitant, attendant, co-occurrence
an event or situation that happens at the same time as or in connection with another
2. accompaniment, musical accompaniment, backup, support
a musical part (vocal or instrumental) that supports or provides background for other musical parts
3. 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"
4. escort, accompaniment
the act of accompanying someone or something in order to protect them
Source: WordNet® (An amazing lexical database of English)
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