Definitions
1.NounPrudence when faced with, or when expecting to face, danger; care taken in order to avoid risk or harm."take caution; have caution; exercise great caution; utmost caution is required when travelling in this dangerous neighbourhood; act with caution; proceed without due caution; sound a note of caution"
2.NounA careful attention to the probable effects of an act, in order that failure or harm may be avoided."The guideline expressed caution against excessive radiographic imaging."
3.NounSecurity; guaranty; bail.
4.NounOne who draws attention or causes astonishment by their behaviour."Oh, that boy, he's a caution! He does make me laugh."
5.NounA formal warning given as an alternative to prosecution in minor cases.
6.NounA yellow card.
7.VerbTo warn; to alert, advise that caution is warranted.
8.VerbTo give a yellow card.