Definition of overlay
(Entry 1 of 2)
1a
: to lay or spread over or across : superimpose
b
: to prepare an overlay for
2
: overlie sense 2
overlay
nounDefinition of overlay (Entry 2 of 2)
: a covering either permanent or temporary: such as
a
: an ornamental veneer
b
: a decorative and contrasting design or article placed on top of a plain one
c
: a transparent sheet containing graphic matter to be superimposed on another sheet
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Merriam-Webster unabridged
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Time Traveler for overlay
The first known use of overlay was in the 14th century
See more words from the same century