noun security; guaranty; bail.
2. caution ·noun precept or warning against evil of any kind; exhortation to wariness; advice; injunction.
3. caution ·vt to give notice of danger to; to warn; to exhort to take heed.
4. caution ·noun 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.
5. caution ·add. ·noun a pledge, bond, or other security for the performance of an obligation either in or out of judicial proceedings; the promise or contract of one not for himself but another; security.