collection

noun

1. 1

   A set of items or amount of material procured or gathered together.

   “The asteroid belt consists of a collection of dust, rubble, and minor planets.”

2. 2

   Multiple related objects associated as a group.

   “He has a superb coin collection.”

3. 3

   The activity of collecting.

   “Collection of trash will occur every Thursday.”

4. 4

   A set of sets.

5. 5

   A gathering of money for charitable or other purposes, as by passing a contribution box for donations.

6. 6

   Debt collection.

7. 7

   The act of inferring or concluding from premises or observed facts; also, that which is inferred.

8. 8

   The jurisdiction of a collector of excise.

9. 9

   (in the plural, Oxford University) A set of college exams generally taken at the start of the term.

10. 10

    The quality of being collected; calm composure.