collection
A set of items or amount of material procured, gathered or presented together.
(music) A set of pitch classes used by a composer.
The activity of collecting.
(analysis) A set of sets; ''used because such a thing is in general too large to comply with the formal definition of a set''.
A gathering of money for charitable or other purposes, as by passing a contribution box for donations.
(law) Debt collection.
(obsolete) The act of inferring or concluding from premises or observed facts; also, that which is inferred.
(UK) The jurisdiction of a collector of excise.
(in the plural) A set of college exams generally taken at the start of the term.
The quality of being collected; calm composure.