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

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

(film) An ending of this kind.

(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.

plural of Black Friday

An omnivorous slug found in Europe and the Pacific Northwest, Arion ater, not always black, despite the name.

(philately) The world's first official postage stamp, issued in 1840 in the United Kingdom as part of postal reforms.

A form of film punctuation in which the picture is instantaneously darkened.

A black-shelled edible mollusc (Haliotis crachedorii), found off the North American Pacific coast.

A perennial member of the sunflower family (Asteraceae), cultivated as a root vegetable (Pseudopodospermum hispanicum, syn. Scorzonera hispanica).