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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Let happen:

SITBY: Let happen
PERMIT: Let happen
ALLOW: Let happen
AVERT: Not let happen
SATBY: Let it happen
HEAVENFORBID: Don't let it happen!
NOTYET: Let's see what happens first
STAYTUNED: Stick around and let's see what happens!