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

Crossword clues for Study hard: Colloq. 5 letters:

BONED: Studied hard: Colloq.
CRAMS: Studies hard: Colloq.
GRIND: Study hard: Colloq.
DIG: Study hard: Colloq.