Compounds of ないと
- (exp) without
but if
(P) - (conj,exp) (uk) otherwise
else
if not so - (exp) (1) (uk) (after negative base of verb) have to (verb)
must (verb)
(2) is indispensable
absolutely necessary
(P) - (exp) (a place) out of one's reach
- (exp) There's no smoke without fire.