= post office, n.; cf. General Letter Office, n.

A post office. In later use chiefly historical or English regional (northern). Now rare.

A building or room where postal business is carried on; a branch of the Post Office.

With the sense ‘belonging to a postal station or to a posting establishment’, as post hut, †post-shed, post-yard (now historical).

With the sense ‘belonging to a postal station or to a posting establishment’, as post hut, †post-shed, post-yard (now historical).

A post office; (also) the Post Office as a service or organization.

North American. A subsidiary post office. Cf. postal station (b) at postal, adj. n.compounds.

A national or regional organization for the collection, transportation, and delivery of letters, parcels, etc. (= post office, n. 1); the official…