quan·ti·ty
\\ˈkwän-tə-tē\\ noun
(plural -ties)

 ETYMOLOGY  Middle English quantite, from Anglo-French quantité, from Latin quantitat-, quantitas, from quantus how much, how large; akin to Latin quam how, as, quando when, qui who — more at who

1.
  a. an indefinite amount or number
  b. a determinate or estimated amount
  c. total amount or number
  d. a considerable amount or number — often used in plural
      generous quantities of luck — H. E. Putsch
2.
  a. the aspect in which a thing is measurable in terms of greater, less, or equal or of increasing or decreasing magnitude
  b. the subject of a mathematical operation
  c. an individual considered with respect to a given situation
      an unknown quantity…as attorney general — Tom Wicker
3.
  a. duration and intensity of speech sounds as distinct from their individual quality or phonemic character; specifically : the relative length or brevity of a prosodic syllable in some languages (as Greek and Latin)
  b. the relative duration or time length of a speech sound or sound sequence
4. the character of a logical proposition as being universal, particular, or singular