A small piece of practical information.

colloquial. A piece or item of useful information, knowledge, or advice; a helpful or valuable hint; a ‘tip’.

A piece of useful private or special information communicated by an expert; a friendly hint; spec. ‘an advice concerning betting or a Stock-Exchange…

A hint, ‘tip’. (Cf. hunch, v. 2b.)

the straight tip: see quots.

figurative. A ‘wrinkle’, a hint. Cf. kink, n.1 2b.

slang. (See quot. 1874.)

A clever trick, ploy, or stratagem to achieve a desired end, esp. by unorthodox, irregular, or time-saving means; a dodge; a tip.

Originally U.S. A suggestion, a tip; a hint; a piece of information; an indication of what is likely to happen in the future.

A tip (in betting, etc.); a signal, hint. Cf. griff, n.6

A tip; news; reliable information.

Information, a ‘tip’, esp. about criminal activity; a hint or ‘giveaway’. slang (originally U.S.).

U.S. Criminals' slang. An interruption in the course of a crime; an alarm; a tip-off. Cf. rumble, v.2 9a.

Originally Theatre slang, A joke or comic gag introduced into the performance of a piece by a clown or comedian, esp. a comic phrase or saying…

colloquial (Australian and New Zealand). With the. Reliable and pertinent information; a tip; warning. Cf. drum, v.1 9.