WordWeb Online

1. Put something on top of something else
   "overlay the meat with a lot of gravy";
   - cover
    
2. Kill by lying on
   "The sow overlay her piglets";
   - overlie

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
   - sheathing, overlayer
    
2. A layer of decorative material (such as gold leaf or wood veneer) applied over a surface

1. Lie upon; lie on top of
   "the granite overlies the older rocks"

Derived forms: overlays, overlaying, overlaid

Type of: bed, decoration, kill, layer, lie, ornament, ornamentation, protection, protective cover, protective covering

Encyclopedia: Overlay