1. noun /ˈkɔːʃn,ˈkɑːʃn/
a) Precept or warning against evil or danger of any kind; exhortation to wariness; advice; injunction.
b) 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. verb /ˈkɔːʃn,ˈkɑːʃn/
Wikipedia foundation.