(computing) A conceptual object that can be possessed by a computer, process, etc. in order to regulate a turn-taking system such as a token ringnetwork.
(computing) A meaningless placeholder used as a substitute for sensitive data.
(grammar) A lexeme; a basic, grammatically indivisible unit of a language such as a keyword, operator or identifier.
(medicine) A characteristic sign of a disease or of a bodily disorder, a symptom; a sign of a bodily condition, recovery, or health.
(medicine, obsolete) A livid spot upon the body, indicating, or supposed to indicate, the approach of death.
(printing) Ten and a half quires, or, commonly, 250 sheets, of paper printed on both sides; also, in some cases, the same number of sheets printed on one side, or half the number printed on both sides.
(mining) A bit of leather having a peculiar mark designating a particular miner. Each hewer sends one of these with each corf or tub he has hewn.
(mining) A thin bed of coal indicating the existence of a thicker seam at no great distance.