OVL meaning in Electronics ?

What is Overlay mean?

Overlay may refer to:

Overlay architecture, "event architecture" relating to the temporary elements that supplement existing buildings and infrastructure to enable the operation of major sporting events or festivalsOverlay control in semiconductor manufacturing, for monitoring layer-to-layer alignment on multi-layer device structuresVideo overlay, techniques to display video on computer displayHistoric overlay district, a zoning district that applies special rules to a portion of other districts, usually for historic or conservation reasonsOverlay plan, a method of introducing new area codes in telephonyIn gambling, an overlay occurs when the payoffs are greater than the costs reference