Esp. of a domestic servant: dressed in or wearing a livery; provided with a livery. Also as the final element in compounds (see well-liveried, adj.…

†(a) colloquial (of a British soldier) wearing the traditional uniform of a red coat (cf. redcoat, n. 1a) (obsolete); (b) that has a bloody back…

ordinary clothes rather than a uniform, esp. as worn by a police officer; frequently attributive; (also occasionally) = plainclothesman n.

Dressed in or provided with fine or impressive livery.

Characterized by the wearing of livery, or of the best livery. Obsolete. rare.

In the sense ‘wearing uniform; uniformed’; spec. in the police force, distinguished from the plain-clothes section, esp. in uniform branch.