overlay meaning and definition

OVERLAY noun

Definition of overlay (noun)

1. protective 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
   • synonyms: overlayer, sheathing
2. a layer of decorative material (such as gold leaf or wood veneer) applied over a surface

OVERLAY verb

Definition of overlay (verb)

1. put something on top of something else
   • "cover the meat with a lot of gravy"
   • synonyms: cover
2. kill by lying on
   • "The sow overlay her piglets"
   • synonyms: overlie