different between overlay vs envelope

English

Etymology 1

over- +? lay. Compare overlie.

Pronunciation

Verb

• (Received Pronunciation) enPR: ?'v?-l??, IPA^(key): /???.v??le?/
• (General American) enPR: ?'v?r-l??, IPA^(key): /?o?v??le?/

Noun

• (Received Pronunciation) enPR: ??v?-l?', IPA^(key): /???.v??le?/
• (General American) enPR: ??v?r-l?', IPA^(key): /?o?v??le?/
• Rhymes: -e?

Verb

overlay (third-person singular simple present overlays, present participle overlaying, simple past and past participle overlaid or overlayed)

1. (transitive) To lay, spread, or apply something over or across; cover.
2. To overwhelm; to press excessively upon.
   • c. 1610?, Walter Raleigh, A Discourse of War

     when any country is overlaid by the multitude which live upon it

3. (transitive, now rare, archaic) To lie over (someone, especially a child) in order to smother it; to suffocate. [from 14th c.]
   • 1692, John Dryden, Cleomenes, the Spartan Hero, a Tragedy

     a heap of ashes that o'erlays your fire

   • 1993, Pat Barker, The Eye in the Door, Penguin 2014 (The Regeneration Trilogy), p. 371:

     Prostitutes, thieves, girls who ‘overlaid’ their babies, abortionists who stuck their knitting needles into something vital – did they really need to be here?

4. (transitive, printing) To put an overlay on.

Translations

Noun

overlay (plural overlays)

1. (printing) A piece of paper pasted upon the tympan sheet to improve the impression by making it stronger at a particular place.
2. (gambling) Odds which are set higher than expected or warranted. Favorable odds.
3. (horse racing) A horse going off at higher odds than it appears to warrant, based on its past performances.
4. A decal attached to a computer keyboard to relabel the keys.
5. (programming) A block of program code that is loaded over something previously loaded, so as to replace the functionality.
6. (Internet) A pop-up covering an existing part of the display.
7. (Scotland) A cravat.

Translations

Etymology 2

Verb

overlay

1. simple past tense of overlie

Anagrams

• lay over, layover

English

Etymology 1

From French enveloppe.

Pronunciation

• (Received Pronunciation) IPA^(key): /??n.v?.l??p/, /??n.v?.l??p/
• (General American) enPR: än?v?l?p', ?n?v?l?p'; IPA^(key): /??n.v??lo?p/, /??n.v??lo?p/

Noun

envelope (plural envelopes)

1. A paper or cardboard wrapper used to enclose small, flat items, especially letters, for mailing.
2. Something that envelops; a wrapping.
3. A bag containing the lifting gas of a balloon or airship; fabric that encloses the gas-bags of an airship.
4. (geometry) A mathematical curve, surface, or higher-dimensional object that is the tangent to a given family of lines, curves, surfaces, or higher-dimensional objects.
5. (electronics) A curve that bounds another curve or set of curves, as the modulation envelope of an amplitude-modulated carrier wave in electronics.
6. (music) The shape of a sound, which may be controlled by a synthesizer or sampler.
7. (computing) The information used for routing a message that is transmitted with the message but not part of its contents.
8. (biology) An enclosing structure or cover, such as a membrane; a space between two membranes
9. (engineering) The set of limitations within which a technological system can perform safely and effectively.
10. (astronomy) The nebulous covering of the head or nucleus of a comet; a coma.
11. An earthwork in the form of a single parapet or a small rampart, sometimes raised in the ditch and sometimes beyond it.

    (Can we find and add a quotation of Wilhelm to this entry?)

Synonyms

• (something that envelops): wrapper
• (bag containing the lifting gas): gasbag

Derived terms

Translations

See also

• Wikipedia article on envelopes used for mailing
• Wikipedia article on envelopes in geometry

Etymology 2

See envelop.

Pronunciation

• enPR: ?n-v?l'?p, IPA^(key): /?n?v?l?p/
• for audio, see envelop

Verb

envelope (third-person singular simple present envelopes, present participle enveloping, simple past and past participle enveloped)

1. Archaic form of envelop.
   • 1877, James Booth, A Treatise on Some New Geometrical Methods (page 209)

     Again, if the plane of the impressed couple intersects the mean plane between N and C, it will envelope the cone whose focals are ON, ON?, and whose internal axis is therefore OA.

Portuguese

Etymology

From French enveloppe, from envelopper.

Pronunciation

• (Portugal) IPA^(key): /?.v?.?l?.p?/
• (Brazil) IPA^(key): /?.ve.?l?.pi/
• Hyphenation: en?ve?lo?pe

Noun

envelope m (plural envelopes)

1. envelope