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  1. overlay
  2. verb

    • 1. cover the surface of (something) with a coating:

      their fingernails were overlaid with silver or gold
    • 2. lie on top of:

      a third screen which will overlay the others
    • 3. (of a quality or feeling) become more prominent than (a previous quality or feeling):

      his openness had been overlaid by his new self-confidence


    • 1. something laid as a covering over something else:

      a durable, cost-effective floor overlay
    • 2. a transparent sheet placed over artwork or something such as a map, giving additional information or detail:

      full-colour aerial photographs with overlays showing suggested routes
    • 3. a graphical computer display which can be superimposed on another.

    • 4. the process of transferring a block of program code or other data into internal memory, replacing what is already stored.

    • 5. a block of code or other data transferred during the overlay process.

  3. Variation

    • n.: noun: overlay, plural noun: overlays

    • v.: verb: overlay, 3rd person present: overlays, gerund or present participle: overlaying, past tense: overlaid, past participle: overlaid