collector

noun7

1. •
   A person who or thing that collects, or which creates or manages a collection.

   • She is an avid collector of nineteenth-century postage stamps.
   • That old piano is just a big dust collector.
2. •
   A person who is employed to collect payments.

   • She works for the government as a tax collector.
3. •
   A mafioso whose task is to collect protection money from small businesses
4. •
   A compiler of books; one who collects scattered passages and puts them together in one book.

   • Volumes[…] without any of tthe collector's own reflections. — 1705
5. •
   A major sewer which collects sewerage from a number of smaller branch sewers.
6. •
   The amplified terminal on a bipolar junction transistor.
7. •
   (historical) One holding a Bachelor of Arts in Oxford, formerly appointed to superintend some scholastic proceedings in Lent.

   • Whereupon he soon after appointed A. W. his collector in Austins; which office he kept till he was admitted Mr. of arts — 1655