A type of paint with a solvent that evaporates to leave a hard, transparent, glossy film.

Anything resembling such a paint; glossy appearance.

(by extension) A deceptively showy appearance.

(intransitive) To apply varnish.

(transitive) To cover up with varnish.

(transitive) To make something superficially or deceptively attractive

(transitive) To gloss over a defect.