Overlay Definition

ōvər-lā
overlaid, overlaying, overlays
verb
overlaid, overlaying, overlays
To lay or spread over.
Webster's New World
To cover or overspread, as with a decorative layer of something.
Webster's New World
To embellish superficially.
A simple tune that was overlaid with ornate harmonies.
American Heritage
To place an overlay upon.
Webster's New World
To create (a new area code) having the same boundaries as another.
In Maryland, area code 240 was overlaid on top of area code 301.
American Heritage
noun
overlays
Anything laid over another thing; covering.
Webster's New World
A decorative layer or the like, applied in overlaying.
Webster's New World
A transparent flap showing additional details, areas of color, etc. placed over a map, art work, etc.
Webster's New World
The paper affixed to the impression surface of a press to help make a uniform impression.
Webster's New World
In betting, odds which are set higher than expected or warranted.
Webster's New World
Synonyms:

Other Word Forms of Overlay

Noun

Singular:
overlay
Plural:
overlays

Origin of Overlay

  • over- +"Ž lay (compare overlie)

    From Wiktionary

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