different between projection vs conjecture

English

Etymology

From either the Middle French projection or its etymon, the Classical Latin pr?iecti? (stem: pr?iecti?n-), from pr?ici?. Compare the Modern French projection, the German Projektion, and the Italian proiezione.

Pronunciation

• IPA^(key): /p???d??k??n/
• Rhymes: -?k??n

Noun

projection (countable and uncountable, plural projections)

1. Something which projects, protrudes, juts out, sticks out, or stands out.

   The face of the cliff had many projections that were big enough for birds to nest on.

2. The action of projecting or throwing or propelling something.
   1. (archaic) The throwing of materials into a crucible, hence the transmutation of metals.
3. (archaic) The crisis or decisive point of any process, especially a culinary process.
4. The display of an image by devices such as movie projector, video projector, overhead projector or slide projector.
5. A forecast or prognosis obtained by extrapolation
6. (psychology) A belief or assumption that others have similar thoughts and experiences as oneself
7. (photography) The image that a translucent object casts onto another object.
8. (cartography) Any of several systems of intersecting lines that allow the curved surface of the earth to be represented on a flat surface. The set of mathematics used to calculate coordinate positions.
9. (geometry) An image of an object on a surface of fewer dimensions.
10. (linear algebra) An idempotent linear transformation which maps vectors from a vector space onto a subspace.
11. (mathematics) A transformation which extracts a fragment of a mathematical object.
12. (category theory) A morphism from a categorical product to one of its (two) components.

Synonyms

• (something which sticks out): protuberance

Derived terms

Related terms

• project

Translations

Further reading

• projection on Wikipedia.Wikipedia

French

Pronunciation

Noun

projection f (plural projections)

1. projection
2. screening (of a film)

Interlingua

Noun

projection (plural projectiones)

1. projection

English

Etymology

From Old French, from Latin coniect?ra (“a guess”), from coniectus, perfect passive participle of c?nici? (“throw or cast together; guess”), from con- (“together”) + iaci? (“throw, hurl”); see jet. Compare adjective, eject, inject, project, reject, subject, object, trajectory.

Pronunciation

• (UK) IPA^(key): /k?n?d???k.t???(?)/
• (US) IPA^(key): /k?n?d???k.t???/

Noun

conjecture (countable and uncountable, plural conjectures)

1. (formal) A statement or an idea which is unproven, but is thought to be true; a guess.

   I explained it, but it is pure conjecture whether he understood, or not.

2. (formal) A supposition based upon incomplete evidence; a hypothesis.

   The physicist used his conjecture about subatomic particles to design an experiment.

3. (mathematics, linguistics) A statement likely to be true based on available evidence, but which has not been formally proven.
4. (obsolete) Interpretation of signs and omens.

Synonyms

• halseny
• See also Thesaurus:supposition

Related terms

• conject
• conjectural

Translations

Verb

conjecture (third-person singular simple present conjectures, present participle conjecturing, simple past and past participle conjectured)

1. (formal, intransitive) To guess; to venture an unproven idea.

   I do not know if it is true; I am simply conjecturing here.

2. (transitive) To infer on slight evidence; to guess at.
   • February 22, 1685, Robert South, All Contingences under the Direction of God's Providence (sermon preached at Westminster Abbey)

     Human reason can then, at the best, but conjecture what will be.

Translations

Further reading

• conjecture in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• Douglas Harper (2001–2021) , “conjecture”, in Online Etymology Dictionary
• conjecture in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.

French

Etymology

Borrowed from Latin coniect?ra.

Pronunciation

• IPA^(key): /k??.??k.ty?/

Noun

conjecture f (plural conjectures)

1. conjecture

Usage notes

Not to be confused with conjoncture.

Verb

conjecture

1. first-person singular present indicative of conjecturer
2. third-person singular present indicative of conjecturer
3. first-person singular present subjunctive of conjecturer
4. third-person singular present subjunctive of conjecturer
5. second-person singular imperative of conjecturer

Further reading

• “conjecture” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

Latin

Participle

conject?re

1. vocative masculine singular of conject?rus

Portuguese

Verb

conjecture

1. first-person singular (eu) present subjunctive of conjecturar
2. third-person singular (ele and ela, also used with você and others) present subjunctive of conjecturar
3. third-person singular (você) affirmative imperative of conjecturar
4. third-person singular (você) negative imperative of conjecturar