(anatomy) A slender band of muscle on each side of the face that arises from the zygomatic bone, inserts into the orbicularis oris and skin at the corner of the mouth, and acts to pull the corner of the mouth upward and backward when smiling or laughing.

A typically immobile, temporary structure erected by merchants to display their merchandise in a street market.

(UK, informal) Exclamation of pretended astonishment on hearing news too good to be true, or a story too marvellous to be believed.

(UK, slang, obsolete) Used in oaths, suggesting that one should never be trusted again if what one says now is not true.

(archaic) Alternative form of carry me out (“exclamation of pretended astonishment”)

(social media) A demand for no debate regarding a controversial statement.

(intransitive) To be similar or the same. / (transitive) To put together, or in a pair. / (transitive) To matchmake; to set up a romantic meeting between two people.

(publishing, printing) The copy that serves as the controlling (master) version among a set of copies (as, for example, the master proof to which edits from the authors' proofs are transferred, or an analogous master manuscript with transferred edits).

plural of master copy

A legal (as opposed to pathological or biological) determination by a coroner, medical examiner, police, or similar as to the factors leading to a person's death.