(linguistics) A situation wherein a creole language consists of a spectrum of varieties between those most and least similar to the superstrate language.

Any of a group of seventy species of woodboring beetles classified in the insect subfamily Lyctinae.

(medicine) A syndrome where the effects of a concussion extend well beyond the normal time period.

A uniquely addressable lockable box located on the premises of a post office that may be hired as collection point for mail. / (electricity) A test instrument once used by telephone engineers.

plural of post office box

(music) A modern genre of post-punk influenced by indie rock and other modern styles.

letters placed after a person's name to indicate that that the individual holds an academic degree, accreditation, office, military decoration, or honour, or that the individual is a member of a religious institute or fraternity

(idiomatic, obsolete) From one place (or person, or task) to another; from pillar to post, hither and thither.

plural of post-office box

plural of post-nasal drip