Collins English-English Dictionary

quantity ['kwɒntɪtɪ]

1. 1. n a specified or definite amount, weight, number, etc

2. 2. n (as modifier)

   a quantity estimate

3. 3. n the aspect or property of anything that can be measured, weighed, counted, etc

4. 4. n a large or considerable amount

5. 5. n [maths] an entity having a magnitude that may be denoted by a numerical expression

6. 6. n [Physics] a specified magnitude or amount; the product of a number and a unit

7. 7. n [logic] the characteristic of a proposition dependent on whether it is a universal or particular statement, considering all or only part of a class

8. 8. n [prosody] the relative duration of a syllable or the vowel in it

9. 9. n [Etymology] C14: from Old French quantité, from Latin quantitas extent, amount, from quantus how much

10. 10. n [Usage] The use of a plural noun after quantity of as in a large quantity of bananas was formerly considered incorrect, but is now acceptable