Open English Wordnet
Nouns
(n)sheathing, overlay, overlayerprotective covering consisting, for example, of a layer of boards applied to the studs and joists of a building to strengthen it and serve as a foundation for a weatherproof exterior (n)overlaya layer of decorative material (such as gold leaf or wood veneer) applied over a surface Verbs
(v)overlay, coverput something on top of something else“cover the meat with a lot of gravy”