caution

1 caution /ˈkɑːʃən/ noun
plural cautions
1 caution
/ˈkɑːʃən/
noun
plural cautions
Britannica Dictionary definition of CAUTION
1 
[noncount] : care taken to avoid danger or risk : a careful attitude or way of behaving
2 
: a warning telling someone to be careful
[count]
[noncount]
3 
[count] British, law : a spoken official warning given to someone who has done something illegal but has not committed a serious crime

throw/fling/cast caution to the wind

: to stop being careful and do something that is dangerous or that might result in failure
2 caution /ˈkɑːʃən/ verb
cautions; cautioned; cautioning
2 caution
/ˈkɑːʃən/
verb
cautions; cautioned; cautioning
Britannica Dictionary definition of CAUTION
1 
: to warn or tell (someone) about a possible danger, problem, etc.
[+ object]
[no object]
— + against
2 
[+ object] British, law : to give a caution to (someone)