Ac*com"pa*ni*ment (-ment), n. [F.
accompagnement.] That which accompanies; something that attends
as a circumstance, or which is added to give greater completeness to the
principal thing, or by way of ornament, or for the sake of symmetry.
Specifically: (Mus.) A part performed by instruments,
accompanying another part or parts performed by voices; the subordinate
part, or parts, accompanying the voice or a principal instrument; also, the
harmony of a figured bass. P. Cyc.