もう一歩下がると、崖から落ちるよ。

now; soon; shortly; before long; presently; already; yet; by now; (not) anymore; further; more; again; another; the other; interjection used to strengthen expression of an emotion (often exasperation)

one; best; first; foremost; beginning; start; bottom string (on a shamisen, etc.)

step; stride; counter for steps

to come down; to go down; to fall; to drop; to sink; to get lower; to hang; to dangle; to move back; to step back; to withdraw; to retire; to deteriorate; to fall off; to be downgraded; to get closer to the present day; to go south

if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)

cliff

from (e.g. time, place, numerical quantity); since; from (originator); by; because; since; out of (constituent, part); through (e.g. window, vestibule); after; since

to fall down; to drop; to fall (e.g. rain); to sink (e.g. sun or moon); to fall onto (e.g. light or one's gaze); to be used in a certain place (e.g. money); to be omitted; to be missing; to decrease; to sink; to fail (e.g. exam or class); to lose (contest, election, etc.); to crash; to degenerate; to degrade; to fall behind; to become indecent (of a conversation); to be ruined; to go under; to fade; to come out (e.g. a stain); to come off (e.g. makeup); to be removed (e.g. illness, possessing spirit, name on a list); to fall (into someone's hands); to become someone's possession; to fall (into a trap); to fall (for a trick); to give in; to give up; to confess; to flee; to fall; to be defeated; to surrender; to come to (in the end); to end in; to fall (in love, asleep, etc.); to swoon (judo); to consent; to understand; to crash; to freeze; to die; to move to the depths

indicates certainty, emphasis, contempt, request, etc.; used when calling out to someone; used to catch one's breath or get someone's attention; yo!