nounainmfhocal1device allowing movement in one directionraicínmasc42tooth or wheel in ratchetbacfhiacailfem2cmu3sth that changes irreversiblythe ratchet of socialismroth an tsóisialachaisverbbriathar4increase sth graduallyratchet uptransitiveaistreachardaigh de réir a chéilephrasal verbsbriathra frásacha→ ratchet down→ ratchet up