To seal an opening, so as to prevent the entry of draughts.
That prevents the entry of draughts.
To cover up with varnish.
To make something superficially or deceptively attractive
To gloss over a defect.
To apply varnish.
Anything resembling such a paint; glossy appearance.
A type of paint with a solvent that evaporates to leave a hard, transparent, glossy film.
A deceptively showy appearance.