simple past tense and past participle of tan

Having a suntan. / (of leather) Finished, made using tannic acid (as opposed to abrasion).

(Ireland, Britain) The Black and Tans, a British irregular army group operating against Irish republicans in the War of Independence 1920/21.

(engineering) Initialism of total acid number, the measure of a lubricant's or crude oil's acidity. / (banking) Initialism of transaction authentication number, in electronic banking.

(dialectal) A twig or small switch.

A surname from Vietnamese.

A Chinese surname from Hokkien.

Alternative form of Dan

A Chinese surname from Mandarin.

(dialect, rare) The second cardinal number two, formerly used in Celtic areas, especially Cumbria and parts of Yorkshire, for counting sheep, and stitches in knitting.