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

Crossword clues for Diligent workers:

PLIER: Diligent worker
RAISE: Diligent worker's reward
RAISE: Diligent worker's goal
ANTS: Diligent workers
PLYERS: Diligent workers.
PLYER: Diligent worker.
ANT: Aesop's diligent worker
RAISE: Diligent worker's hope
RAISE: Diligent worker's due