Definitions
1.nounA work, such as a work of fiction, published in installments, often numbered and without a specified end.
2.nounA publication issued in successive parts, often numbered and with no predetermined end.
3.nounA serial number, esp. one required to activate software."Go to these sites for serials, cracks and keygens."
4.verbTo assign a serial number to (especially of aircraft)
5.adjectiveHaving to do with or arranged in a series."He was a serial entrepreneur, always coming up with a new way to make cash."
6.adjectivePublished or produced in installments.