different between false vs imaginary

English

Etymology

From Middle English false, fals, from Old English fals (“false; counterfeit; fraudulent; wrong; mistaken”), from Latin falsus (“counterfeit, false; falsehood”), perfect passive participle of fall? (“deceive”). Reinforced in Middle English by Anglo-Norman and Old French fals, faus. Compare Scots fals, false, Saterland Frisian falsk, German falsch, Dutch vals, Swedish and Danish falsk; all from Latin falsus. Displaced native Middle English les, lese, from Old English l?as (“false”); See lease, leasing. Doublet of faux.

Pronunciation

• (UK, General New Zealand, General Australian) IPA^(key): /f??ls/, /f?ls/
• (General American) IPA^(key): /f?ls/, /f?ls/

Adjective

false (comparative falser, superlative falsest)

1. Untrue, not factual, factually incorrect.
2. Based on factually incorrect premises.

3. Spurious, artificial.
4. (logic) Of a state in Boolean logic that indicates a negative result.
5. Uttering falsehood; dishonest or deceitful.

6. Not faithful or loyal, as to obligations, allegiance, vows, etc.; untrue; treacherous.
7. Not well founded; not firm or trustworthy; erroneous.
8. Not essential or permanent, as parts of a structure which are temporary or supplemental.
9. Used in the vernacular name of a species (or group of species) together with the name of another species to which it is similar in appearance.

10. (music) Out of tune.

Synonyms

• lease
• See also Thesaurus:false

Antonyms

• (untrue): real, true

Derived terms

Translations

Adverb

false (comparative more false, superlative most false)

1. in a dishonest and disloyal way; falsely.

Noun

false (plural falses)

1. One of two options on a true-or-false test.

Anagrams

• A.S.L.E.F., Leafs, alefs, fasel, feals, fleas, leafs, lefsa

Italian

Adjective

false f pl

1. feminine plural of falso

Latin

Noun

false

1. vocative singular of falsus

References

• false in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• false in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
• false in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette

Spanish

Verb

false

1. Formal second-person singular (usted) imperative form of falsar.
2. First-person singular (yo) present subjunctive form of falsar.
3. Formal second-person singular (usted) present subjunctive form of falsar.
4. Third-person singular (él, ella, also used with usted^?) present subjunctive form of falsar.

English

Etymology

From Middle French imaginaire, from Latin im?gin?rius (“relating to images, fancied”), from im?g?.

The mathematical sense derives from René Descartes's use (of the French imaginaire) in 1637, La Geometrie, to ridicule the notion of regarding non-real roots of polynomials as numbers. Although Descartes' usage was derogatory, the designation stuck even after the concept gained acceptance in the 18th century.

Pronunciation

• (Received Pronunciation) IPA^(key): /??mæd??n(?)?i/
• (General American) IPA^(key): /??mæd???n??i/

Adjective

imaginary (comparative more imaginary, superlative most imaginary)

1. Existing only in the imagination.

   • Wilt thou add to all the griefs I suffer / Imaginary ills and fancied tortures?

2. (mathematics, of a number) Having no real part; that part of a complex number which is a multiple of ${\displaystyle {\sqrt {-1}}}$ (called imaginary unit).

Synonyms

• (existing only in the imagination): all in one's head

Derived terms

• imaginarily
• imaginariness
• imaginarity
• imaginary number
• imaginary unit

Translations

Noun

imaginary (plural imaginaries)

1. Imagination; fancy. [from 16th c.]
   • 2002, Colin Jones, The Great Nation, Penguin 2003, p. 324:

     By then too Mozart's opera, from Da Ponte's libretto, had made Figaro a stock character in the European imaginary and set the whole Continent whistling Mozartian airs and chuckling at Figaresque humour.
2. (mathematics) An imaginary quantity. [from 18th c.]
3. (sociology) The set of values, institutions, laws, and symbols common to a particular social group and the corresponding society through which people imagine their social whole.

References