different between variety vs quantity

English

Alternative forms

• variëty (rare)

Etymology

From Middle French varieté, from Latin variet?s (“difference, diversity”), from varius (“different, various”); see various. Displaced native Old English misl?cnes.

Pronunciation

• enPR: v?-r???-t?, IPA^(key): /v???a?.?.ti/
• Rhymes: -a??ti
• Hyphenation: va?ri?e?ty

Noun

variety (countable and uncountable, plural varieties)

1. The quality of being varied; diversity.

   Antonym: sameness

2. A specific variation of something.
3. A number of different things.

   Synonyms: array, assortment

4. A state of constant change.
5. (taxonomy) A rank in a taxonomic classification, below species (infraspecific), either below subspecies (subspecific) or ranked comparably therewith.
6. (cybernetics) The total number of distinct states of a system.
7. (cybernetics) Logarithm of the base 2 of the total number of distinct states of a system.
8. (linguistics) A term used for a specific form of a language, neutral to whether that form is a dialect, accent, register, etc. and to its prestige level.
9. (algebra, universal algebra) An equational class; the class of all algebraic structures of a given signature, satisfying a given set of identities.
10. (algebraic geometry) An algebraic variety.
11. The kind of theatrical entertainment given in variety shows.
12. The production of, or performance in, variety shows.

Synonyms

• (quality of being varied): See also Thesaurus:nonuniformity
• (algebraic geometry): algebraic variety
• (universal algebra): equational class, equational variety, variety of algebras

Hyponyms

• (specific variation of something): cultivar

Derived terms

Related terms

Translations

See also

• species
• (cybernetics: logarithm): information entropy

Further reading

• variety in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• variety in The Century Dictionary, New York, N.Y.: The Century Co., 1911.

English

Etymology

From Middle English quantite, from Old French quantité, from Latin quantit?s (“quantity”), from quantus (“how much”).

Pronunciation

• (UK) IPA^(key): /?kw?n.t?.ti/
• (General American) enPR: kw?n?(t)?t?, IPA^(key): /?kw?n(t)?ti/, [?k?w?n(?)??i], [?k?w?n(t?)?t?i]
  • Note: This is with a relaxed middle T, and is only used in colloquial contexts by many speakers.
• (Canada) IPA^(key): /?kw?nd?di/, /?kw?n???i/
• (obsolete) IPA^(key): /?kwæn.t?.ti/

Noun

quantity (countable and uncountable, plural quantities)

1. A fundamental, generic term used when referring to the measurement (count, amount) of a scalar, vector, number of items or to some other way of denominating the value of a collection or group of items.

2. An indefinite amount of something.

   Some soap making oils are best as base oils, used in a larger quantity in the soap, while other oils are best added in a small quantity.

3. A specific measured amount.

4. A considerable measure or amount.

5. (metrology) Property of a phenomenon, body, or substance, where the property has a magnitude that can be expressed as number and a reference.
6. (mathematics) Indicates that the entire preceding expression is henceforth considered a single object.
   • 2006, Jerome E. Kaufmann and Karen Schwitters, Elementary and Intermediate Algebra: A Combined Approach, p 89

     For problems 58-67, translate each word phrase into an algebraic expression. […] 65. x plus 9, the quantity squared

   • 2005, R. Mark Sirkin, Statistics For The Social Sciences, p137

     The second, ${\displaystyle (\sum x)^{2}}$, read "summation of x, quantity squared," tells us to first add up all the xs to get ${\displaystyle \sum x}$ and then square ${\displaystyle \sum x}$ to get ${\displaystyle (\sum x)^{2}}$.

   • 1985, Serge Lang, Math!: Encounters with High School Students, p54

     ANN. ${\displaystyle ra}$ quantity cubed.

     SERGE LANG. That's right, ${\displaystyle (ra)^{3}}$.

Usage notes

• In mathematics, used to unambiguously orate mathematical equations; it is extremely rare in print, since there is no need for it there.

Synonyms

• Qty

Derived terms

• unknown quantity

Related terms

Translations

See also

• measure
• unit

Further reading

• quantity in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• quantity in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• quantity at OneLook Dictionary Search