Definitions

1. noun

a layer of material, such as paint or varnish, applied to the surface of something, especially to protect or decorate it

“The artist added an overlay of glitter to the costume for the party.”

2. verb

to place something, such as a layer of material, on top of something else

“She decided to overlay the old floor with new hardwood to give it a more modern look.”

3. verb

to superimpose or combine two or more images or maps

“The geographer used software to overlay the new data on the existing map.”

4. verb

to play a layer of sound or music over another

“The sound designer decided to overlay the sound effects with the background music to create a more immersive experience.”