(1):

(v. i.) To perform an accompanying part or parts in a composition.

(2):

(v. i.) To associate in a company; to keep company.

(3):

(v. t.) To cohabit with.

(4):

(v. i.) To cohabit (with).

(5):

(v. t.) To go with or attend as a companion or associate; to keep company with; to go along with; - followed by with or by; as, he accompanied his speech with a bow.