(intransitive) to fall, fall down / (intransitive) to fall, drop, go down, decrease / (transitive) to subtract; to deduct / (intransitive, for a fetus) to be miscarried; to be aborted / (intransitive) to fall into, be overcome by (doubts, worry, trouble), to wind up in, end up in / (intransitive) to get tired and weak, fall from power / (intransitive) to lie in (a certain direction) / (intransitive) to receive, get as one's share / (intransitive, colloquial) to live in sexual intimacy with, sleep around with

to understand

to need somebody's help