UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈbeɪsɪs/US:USA pronunciation: IPA and respellingUSA pronuncation: IPA/ˈbeɪsɪs/ ,USA pronunciation: respelling(bāsis)

Inflections of 'basis' (nnoun: Refers to person, place, thing, quality, etc.): nplplural noun: Noun always used in plural form--for example, "jeans," "scissors.": bases

WordReference Random House Learner's Dictionary of American English © 2020
ba•sis /ˈbeɪsɪs/USA pronunciation   n. [countable], pl. -ses (-sēz).
  1. a bottom or base;
    foundation:no basis for your opinion.
    See base1.

WordReference Random House Unabridged Dictionary of American English © 2020
ba•sis  (bāsis),USA pronunciation n., pl.  -ses (bāsis),USA pronunciation 
  1. the bottom or base of anything;
    the part on which something stands or rests.
  2. anything upon which something is based;
    fundamental principle;
  3. the principal constituent;
    fundamental ingredient.
  4. a basic fact, amount, standard, etc., used in making computations, reaching conclusions, or the like:The nurse is paid on an hourly basis. He was chosen on the basis of his college grades.
  5. Mathematicsa set of linearly independent elements of a given vector space having the property that every element of the space can be written as a linear combination of the elements of the set.
  • Greek básis step, place one stands on, pedestal, equivalent. to ba-, base of baínein to walk, step (akin to come) + -sis -sis; compare base1
  • Latin
  • 1525–35
    • 1, 2.See corresponding entry in Unabridged See  base 1.

Collins Concise English Dictionary © HarperCollins Publishers::
basis /ˈbeɪsɪs/ n ( pl -ses / -siːz/)
  1. something that underlies, supports, or is essential to something else, esp an abstract idea
  2. a principle on which something depends or from which something has issued
Etymology: 14th Century: via Latin from Greek: step, from bainein to step, go
'basis' also found in these entries:
Collocations: will be working [here, with us] on a [temporary, permanent] basis, paid on [a weekly, an hourly, a monthly] basis, What is your basis for [thinking, saying] that?, more...

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