principle, s.Prionsabal m.1First principles of geometry, bunphrionsabail fpl na geoiméadrachta. To lay sth. down as a principle that. . ., é a leagan amach mar phrionsabal go . . . 2Man of high principles, fear prionsabálta. Laxity of principle, díth f moráltachta. To do sth. on principle, to make it a matter of principle to do sth., rud a dhéanamh ar phrionsabal. 3Ch: Active principle, comhábhar m gníomhach.