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).

(Ireland, UK, idiomatic, potentially offensive) Third-world charities, the missions.

Area in the West Midlands of England, birthplace of the Industrial Revolution.

(astronomy) A hypothesized white dwarf that has cooled down and no longer emits visible light.

Craterellus cornucopioides / Polyozellus multiplex: blue chanterelle