1 : of high social status; "people of quality"; "a quality family"
nom
1 : an essential and distinguishing attribute of something or someone; "the quality of mercy is not strained"--Shakespeare
2 : (music) the distinctive property of a complex sound (a voice or noise or musical sound); "the timbre of her soprano was rich and lovely"; "the muffled tones of the broken bell summoned them to meet"