(transitive) To make dark or darker by reducing light. / (intransitive) To become dark or darker (having less light).

To be dark; to be visible only darkly. / To become dark; to show indistinctly.

With insufficient light for easy discernment or comprehension / With a dark appearance / (figuratively) In a manner which is not readily visible or noticeable; inconspicuously

(chiefly poetic) Relating to darkness or obscurity.

(dated slang, offensive, ethnic slur) A person with dark skin. / (slang, obsolete) A dark lantern.

comparative form of dark: more dark

simple past tense and past participle of darken

Made dark or lightproof by the exclusion of light. / Having an absence of light, such as at night-time.

(photography) A dark room, where photographs are developed. / A darkened room where sexual activity can take place, especially one in a gay club.

A region of coastal New South Wales, Australia. / (linguistics) The extinct language of the people of that region.