different between hypothesis vs impression

English

Etymology

Recorded since 1596, from Middle French hypothese, from Late Latin hypothesis, from Ancient Greek ???????? (hupóthesis, “base, basis of an argument, supposition”, literally “a placing under”), itself from ????????? (hupotíth?mi, “I set before, suggest”), from ??? (hupó, “below”) + ?????? (títh?mi, “I put, place”).

Pronunciation

• (UK) IPA^(key): /ha??p???s?s/, /h??p???s?s/, /h??p???s?s/, /-?s?s/, /-?s?s/
• (US) IPA^(key): /ha??p??.??.s?s/

Noun

hypothesis (plural hypotheses)

1. (sciences) Used loosely, a tentative conjecture explaining an observation, phenomenon or scientific problem that can be tested by further observation, investigation and/or experimentation. As a scientific term of art, see the attached quotation. Compare to theory, and quotation given there.
   • 2005, Ronald H. Pine, http://www.csicop.org/specialarticles/show/intelligent_design_or_no_model_creationism, 15 October 2005:

     Far too many of us have been taught in school that a scientist, in the course of trying to figure something out, will first come up with a "hypothesis" (a guess or surmise—not necessarily even an "educated" guess). ... [But t]he word "hypothesis" should be used, in science, exclusively for a reasoned, sensible, knowledge-informed explanation for why some phenomenon exists or occurs. An hypothesis can be as yet untested; can have already been tested; may have been falsified; may have not yet been falsified, although tested; or may have been tested in a myriad of ways countless times without being falsified; and it may come to be universally accepted by the scientific community. An understanding of the word "hypothesis," as used in science, requires a grasp of the principles underlying Occam's Razor and Karl Popper's thought in regard to "falsifiability"—including the notion that any respectable scientific hypothesis must, in principle, be "capable of" being proven wrong (if it should, in fact, just happen to be wrong), but none can ever be proved to be true. One aspect of a proper understanding of the word "hypothesis," as used in science, is that only a vanishingly small percentage of hypotheses could ever potentially become a theory.

2. (general) An assumption taken to be true for the purpose of argument or investigation.
3. (grammar) The antecedent of a conditional statement.

Synonyms

• supposition
• theory
• thesis
• educated guess
• guess
• See also Thesaurus:supposition

Derived terms

Related terms

Translations

Latin

Etymology

Borrowed from Ancient Greek ???????? (hupóthesis, “hypothesis”, noun).

Pronunciation

• (Classical) IPA^(key): /hy?po.t?e.sis/, [h??p?t???s??s?]
• (Ecclesiastical) IPA^(key): /i?po.te.sis/, [i?p??t??s?is]

Noun

hypothesis f (genitive hypothesis or hypothese?s or hypothesios); third declension

1. hypothesis

Declension

Third-declension noun (Greek-type, i-stem, i-stem).

¹Found sometimes in Medieval and New Latin.

• There is also genitive plural hypothese?n.
• The genitive singular is also spelled hypothese?s and the genitive plural hypothese?n.

English

Etymology

From Old French impression, from Latin impressio.

Pronunciation

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

Noun

impression (plural impressions)

1. The indentation or depression made by the pressure of one object on or into another.

2. The overall effect of something, e.g., on a person.

3. A vague recalling of an event, a belief.

4. An impersonation, an imitation of the mannerisms of another individual.
5. An outward appearance.
6. (advertising) An online advertising performance metric representing an instance where an ad is shown once.
   • 2010, Dusty Reagan, Twitter Application Development For Dummies, John Wiley & Sons (?ISBN), page 329:

     Publishers are paid for each ad impression their site generates.

7. (painting) The first coat of colour, such as the priming in house-painting etc.
8. (engraving) A print on paper from a wood block, metal plate, etc.
9. (philosophy) The vivid perception of something as it is experienced, in contrast to ideas or thoughts drawn from memory or the imagination.

Related terms

• impressionability
• impressionable
• impressional
• impressionism
• impressionist
• impressive
• under the impression

Translations

Verb

impression (third-person singular simple present impressions, present participle impressioning, simple past and past participle impressioned)

1. To manipulate a blank key within a lock so as to mark it with impressions of the shape of the lock, which facilitates creation of a duplicate key.
   • 2007, Graham Pulford, High-Security Mechanical Locks: An Encyclopedic Reference (page 55)

     The trick in impressioning a key is to remove only a small amount of the blank, by filing or cutting, from the pin positions where impressions have been left.

Anagrams

• permission

French

Etymology

Borrowed from Latin impressi?.

Pronunciation

• IPA^(key): /??.p??.sj??/, /??.p?e.sj??/

Noun

impression f (plural impressions)

1. an impression, the overall effect of something.
2. the indentation or depression made by the pressure of one object on another.
3. a print, print-out

Derived terms

• faire bonne impression
• impressionnant
• impressionner
• impressionnisme
• impressionniste

Related terms

• empreindre
• imprimer
• imprimerie
• imprimante
• imprimable

Descendants

• Romanian: impresiune, impresie

Further reading

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

Anagrams

• méprisions