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

Crossword clues for Begin, slangily 7 letters:

GETITON: Begin, slangily
GETGO: From the ___ (since the beginning, slangily)
GITGO: Very beginning, slangily
GITGO: Beginning, slangily
GETGO: Very beginning, slangily
DOA: Doomed from the beginning, slangily