Cau″tion (?), n. [F. caution a security, L. cautio, fr. cavere (For scavere) to be on one's guard, to take care (orig.) to be on the watch, see; akin to E. show.] 1. A careful attention to the probable effects of an act, in order that failure or harm may be avoided; prudence in regard to danger; provident care; wariness.
2. Security; guaranty; bail.
The Parliament would yet give his majesty sufficient caution that the war should be prosecuted.
Clarendon.
3. Precept or warning against evil of any kind; exhortation to wariness; advice; injunction.
In way of caution I must tell you.
Shak.
Caution money, money deposited by way of security or guaranty, as by a student at an English university.
Syn. — Care; forethought; forecast; heed; prudence; watchfulness; vigilance; circumspection; anxiety; providence; counsel; advice; warning; admonition.