What does "overlay" mean?
An image to be overlaid on another; a superimposition or diapositive.
Overlay
/ˌəʊ.vəˈleɪ/ noun, verb
noun, verb ·Common ·High school level
Meaning at a glance
- Primary sense: An image to be overlaid on another; a superimposition or diapositive.
- Grammar: overlay is listed as noun, verb.
- Nearest alternatives: adorn, applique, appliquéd, apply.
- Useful contrasts: base, base layer, detach.
- Usage evidence: By 1969 the debate over virtual memory for commercial computers was over. An IBM research team led by David Sayre showed that their virtual memory overlay system consistently worked better than the best manually controlled systems.
How to use "overlay"
- Start with the primary definition, then check the part of speech before placing the word in a sentence.
- Compare nearby synonyms to make sure "overlay" carries the exact meaning, tone, and strength you need.
- Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.
Meaning check
- Does the word fit the sentence's grammar?
- Does it match the intended tone rather than only the dictionary definition?
- Would a simpler synonym be clearer for the reader?
- Is there enough surrounding context to prevent ambiguity?
Source and review context
This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "overlay" in a final draft.
If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.
Before you rely on this definition
Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "overlay" as the right word for your sentence.
If your draft is formal, technical, persuasive, or sensitive, compare "overlay" with a nearby alternative so the final choice matches both meaning and reader expectation.
Compare nearby meanings
- Use synonyms when you need a softer, stronger, simpler, or more specific word.
- Use antonyms to check the boundary of the meaning and avoid accidental contrast.
- Use the example sentence to confirm the word behaves naturally in context.
- Keep the original wording when a replacement adds complexity without improving precision.
Definition decision workflow
1. Identify the role
Check whether "overlay" is acting as noun, verb in your sentence. A definition is only useful when the grammar matches the way the word is being used.
2. Test the nearest option
Compare it with "adorn" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.
3. Confirm with context
Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.
Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.
Final meaning check
Before publishing a sentence with "overlay", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.
When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.
Definitions
Noun
- 1 An image to be overlaid on another; a superimposition or diapositive.
- 2 a layer of decorative material (such as gold leaf or wood veneer) applied over a surface wordnet
- 3 A piece of paper pasted upon the tympan sheet to improve the impression by making it stronger at a particular place.
- 4 protective covering consisting, for example, of a layer of boards applied to the studs and joists of a building to strengthen it and serve as a foundation for a weatherproof exterior wordnet
- 5 Odds which are set higher than expected or warranted. Favorable odds.
Show 6 more definitions
- 6 A horse going off at higher odds than it appears to warrant, based on its past performances.
- 7 A decal attached to a computer keyboard to relabel the keys.
"The keyboard overlay can be a memory jogger and a great help with spelling. In this way the keyboard makes word processing more accessible to younger as well as special needs children."
- 8 A block of program code that is loaded over something previously loaded, so as to replace the functionality.
"This concept can be extended further by allowing a primary overlay to call a secondary overlay, and so on. However, we will limit ourselves here to the use of primary overlays. Before proceeding further, you need to understand the memory map of the computer, which is a diagram showing the use to which the memory of the computer is put."
- 9 A pop-up covering an existing part of the display. Internet
- 10 A cravat. Scotland
- 11 A covering over something else.
"The first, on January 1, 1883, was attributed to the overlay becoming surcharged with water, due to insufficient drainage, and causing a slip."
Verb
- 1 To lay, spread, or apply (something) over or across (something else); to overspread. transitive
"Near-synonyms: cover, superimpose, superpose"
- 2 simple past of overlie form-of, past
- 3 kill by lying on wordnet
- 4 To overwhelm; to press excessively upon.
"when any country is overlaid by the multitude which live upon it"
- 5 put something on top of something else wordnet
Show 3 more definitions
- 6 To lie over (someone, especially a child) in order to smother it; to suffocate. archaic, transitive
"And this womans childe died in the night: because she ouerlaid it."
- 7 To put an overlay on. transitive
- 8 To bet too much money on. transitive
"[…] he has 'overlaid' his book, and has not succeeded in 'getting round' by bets against the other horses."
Synonyms
All synonymsExample
"By 1969 the debate over virtual memory for commercial computers was over. An IBM research team led by David Sayre showed that their virtual memory overlay system consistently worked better than the best manually controlled systems."
Common questions
What is a synonym for "overlay"?
Common synonyms include: adorn, applique, appliquéd, apply, apply covering, apply to.
How do you use "overlay" in a sentence?
By 1969 the debate over virtual memory for commercial computers was over. An IBM research team led by David Sayre showed that their virtual memory overlay system consistently worked better than the best manually controlled systems.
How do you pronounce "overlay"?
Pronounced /ˌəʊ.vəˈleɪ/.
Etymology
From Middle English overleyen, from Old English oferleċġan, from Proto-West Germanic *obarlaggjan, from Proto-Germanic *uberlagjaną, equivalent to over- + lay. Cognate with Saterland Frisian uurläze, úurlääse, Dutch overleggen, German Low German overleggen, överleggen, German überlegen, Swedish överlägga, Norwegian overlegge. Compare overlie.