Dictionary & Thesaurus

ratchet

1.	(verb) move by degrees in one direction only, as of toothed wheels
	Synonyms: rachet up, ratchet down
	Related Words: advance, go on, march on, move on, pass on, progress

2.	(noun) a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
	Synonyms: rachet, ratch
	Related Words: mechanical device