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

Crossword clues for Says with certainty:

AVER: Say with certainty
AVERS: Says with certainty
ASSERTS: Says with certainty
AVOW: Say with certainty
TAXES: One of life's certainties, in a saying
TAXES: One of two certainties, in a saying