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Synonyms

overlay

1 American  
[oh-ver-ley, oh-ver-ley] / ˌoʊ vərˈleɪ, ˈoʊ vərˌleɪ /

verb (used with object)

overlaid, overlaying
  1. to lay or place (one thing) over or upon another.

  2. to cover, overspread, or surmount with something.

  3. to finish with a layer or applied decoration of something.

    wood richly overlaid with gold.

  4. Printing. to put an overlay upon.


noun

overlays plural
  1. something laid over something else; covering.

  2. a layer or decoration of something applied.

    an overlay of gold.

  3. Printing.

    1. a shaped piece of paper, or a sheet of paper reinforced at the proper places by shaped pieces, put on the tympan of a press to increase or equalize the impression.

    2. a method of preparing copy for multicolor printing, in which matter for each color is prepared on a transparent sheet that is placed over a key plate, usually the one to be printed in black.

    3. the sheet or sheets so prepared.

  4. a sheet of transparent paper placed over a photograph, a dummy, or other artwork for noting corrections, instructions, mechanical separations, etc.

  5. Computers. software or data in external storage and brought into main storage for execution by replacing or augmenting software or data already there.

  6. a transparent sheet giving special military information not ordinarily shown on maps, used by being placed over the map on which it is based.

  7. a decorative piece of leather or other material stitched on a shoe.

  8. Scot. a cravat.

overlay 2 American  
[oh-ver-ley] / ˌoʊ vərˈleɪ /

verb

  1. simple past tense of overlie.


overlay British  

verb

  1. to lay or place something over or upon (something else)

  2. (often foll by with) to cover, overspread, or conceal (with)

  3. (foll by with) to cover (a surface) with an applied decoration

    ebony overlaid with silver

  4. to achieve the correct printing pressure all over (a forme or plate) by adding to the appropriate areas of the packing

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. something that is laid over something else; covering

  2. an applied decoration or layer, as of gold leaf

  3. a transparent sheet giving extra details to a map or diagram over which it is designed to be placed

  4. printing material, such as paper, used to overlay a forme or plate

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of overlay

Middle English word dating back to 1250–1300; see origin at over-, lay 1

Explanation

To overlay is to cover with a coating or a layer, or to set one thing on top of another. A winter storm will sometimes overlay a dangerously slick coating of ice on top of the road. An artist might overlay a ceramic object with gold, or overlay one piece of paper on another in a collage. The layer itself, whether it's clear plastic or cement or silver, is also called an overlay. Another kind of overlay, dating from the 1930s, is the transparent sheet of paper in a book that covers a map or other full-page illustration.

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Vocabulary lists containing overlay

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Its asset quality remains at cycle-best levels with creation of prudential overlay of around INR2.17 billion in 4Q FY2026 amid macroeconomic uncertainties rather than underlying stress, the analysts say.

From The Wall Street Journal • Apr. 27, 2026

But a digital forensics expert told AFP's fact-checkers that the anomaly was the result of a failed text overlay by a news station that had syndicated the official feed.

From Barron's • Apr. 11, 2026

The other is an overlay of orange and yellow splotches on the land.

From Los Angeles Times • Mar. 26, 2026

BBC Sport has seen a telemetry data overlay of a quick lap from Bahrain with last year's cars compared with one from this year.

From BBC • Feb. 26, 2026

The rain had condensed on the windows, covering the cracked windshield like a filmy overlay of lace.

From "The Darkest Minds" by Alexandra Bracken

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