Definition of jacques:
(n) :
A male given name from French [in turn from Latin, in turn from Ancient Greek, in turn from Biblical Hebrew], feminine equivalent Jacqueline, equivalent to English Jacob.
(n) :
A surname from given name.
(n) :
(obsolete) Alternative form of jakes: a place to urinate or defecate, an outhouse or lavatory. [(now chiefly Ireland) A place to urinate and defecate: an outhouse or lavatory.]