(historical) A cross marked on a building occupied by victims of plague, as a warning of contagion.

(US, military) Any of a series of experimental aircraft and rockets, used to test and evaluate new technologies and aerodynamic concepts.

(rail transport) A steel plate used on rail tracks between flanged T rail and the crossties.

(travel) synonym of air ticket

Alternative form of play Old Gooseberry

(archaic, idiomatic, UK) To suddenly put a stop to a disturbance by force or threats. / (archaic, idiomatic, UK) To play the devil; to make mischief.

a dark green variety of chalcedony

Synonym of plasma gemstone (a dark green variety of chalcedony)

plural of abyssal plain

(chiefly US, idiomatic) To receive widespread acceptance among members of the general American public.