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

Crossword clues for Used a treadmill 3 letters:

RAN: Used a treadmill
AEROBICEXERCISE: Using a treadmill, e.g.
RUNS: Uses a treadmill
RUNINPLACE: Use a treadmill
JOGS: Uses a treadmill, maybe
JOGS: Uses a treadmill, perhaps
RUNINPLACE: Use a treadmill, for example