an essential and distinguishing attribute of something or someone

a degree or grade of excellence or worth

a characteristic property that defines the apparent individual nature of something

(music) the distinctive property of a complex sound (a voice or noise or musical sound)

high social status

of superior grade

of high social status

maintenance of standards of quality of manufactured goods

your personal satisfaction (or dissatisfaction) with the cultural or intellectual conditions under which you live (as distinct from material comfort)