(geography) An inland sea bound by Southeastern Europe in the west, Eastern Europe in the north and northeast, and Turkey in the south.

A bird of the species Dryocopus martius in the family Picidae.

(film) To end a film or a scene of a film by causing the image to be gradually dimmed into black.

A penalty card issued by an official in several sports for infractions. / (fencing) The most severe of penalties, which results in the fencer being expelled from the match.

(idiomatic) Explicitly, in writing, clearly and without doubt or misunderstanding, without any grey areas. / (literally) Using shades of gray rather than color.

A Friday falling on the 13th day of the month (and therefore doubly ill-omened). / (possibly obsolete) Good Friday. / Any Friday actually darkened by catastrophe, or the anniversary thereof.

(physics) Alternative form of blackbody / Used other than figuratively or idiomatically: see black, body.

Pitch-black; of the blackest black.

Coal-black; the blackest black.

(chemistry) A form of carbon black formed by the decomposition (but not by the burning) of acetylene. It is characterized by its high degree of crystalline orientation compared with other sources of carbon black.