sax /sæks/noun 4verb 2forms 3 noun4 •(historical) An early medieval type of machete common with the Germanic peoples. •Clipping of saxophone. •a shade of colour similar to sky blue •(no longer used) A knife or sword; a dagger about 50 cm (20 inches) in length. verb2 •To play the saxophone •(dialect, UK) To cut or slash with a sharp instrument; incise; scarify. formssaxed · saxing · saxes