Definition: [verb] cover the surface of (something) with a coating.
Example: their fingernails were overlaid with silver or gold
Definition: [verb] (of a quality or feeling) become more prominent than (a previous quality or feeling).
Example: his openness had been overlaid by his new self-confidence
Definition: [noun] something laid as a covering over something else.
Example: a durable, cost-effective floor overlay
Definition: [noun] the process of transferring a block of program code or other data into internal memory, replacing what is already stored.