overlay

Universal Words verb, noun verb ( [VN] [usuallypassive] ~ )with sth( 1 )technical( to put sth on top of a surface so as to cover it completely; to lie on top of a surface: wood overlaid with gold 2 )literary( to add sth, especially a feeling or quality, to sth else so that it seems to cover it: The place was overlaid with memories of his childhood. noun 1 a transparent sheet with drawings, figures, etc. on it that can be placed on top of another sheet in order to change it: An overlay showing population can be placed on top of the map. 2 a thing that is laid on top of or covers sth else: an overlay of fibreglass insulation