plural of black card

Alternative spelling of blackcurrant

A seabird, Cepphus grylle, of the auk family (Alcidae).

A small seabird (Chlidonias niger), of the tern family (Sternidae)

(business, historical, economics, finance) The day when the New York Stock Exchange crashed before the Great Depression; Thursday, October 24th, 1929.

Alternative spelling of jet-black

plural of black flag

A flag with a black color, used as a symbol of anarchism. / A racing flag with a black color, used in auto racing to summon a driver to the pits.

(transitive) To summon (a racing driver) to the pits by waving a black flag.

plural of black hat