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

Crossword clue for "FAST"

FAST: like some incorrect clocks; like lightning; accelerated path of advancement; contronym that means moving quickly or not moving at all; what many do during Ramadan and Yom Kippur; unfading; live on water, say; breakneck … or something to break