gar UK /ɡɑː/US /ɡɑɹ/noun 2verb 1forms 4 noun2 •(US, Canada) Any of several North American fish of the family Lepisosteidae that have long, narrow jaws.A great gar plunged with a loud splash into the water hole. — 1907 •(UK, Ireland) A garfish, Belone belone. verb1 •(dialect, UK) To make, compel (someone to do something); to cause (something to be done).Farewell to pleasant Dilston Hall, / My father's ancient seat, / A stranger now must call thee his, / Which gars my heart to greet. [...]. — 1807 formsgart · garring · gars · GARs