closed; covered; sealed; enclosed / secret; private

secret; hidden / discreet; reticent; reserved

closed; self-contained

deep; profound; secrete; intimate

(literally) see chỗ and kín / (euphemistic) private parts; genitals; sexual organs

(slightly literary) secret and personal

glass that comes in thinnish, flattish sheets (as opposed to, for example, a thick block or a globular shape), used to make doors, windows, eyewear, lenses, etc.; compare thuỷ tinh (“glass as a substance in general”)

eyeglasses / Synonym of gương (“mirror”)

(rare, chiefly in set phrases) to respect

(honorific, before verbs) respectfully; cordially