Definition of "Source" :

noun: a facility where something is available

noun: anything that provides inspiration for later work

noun: a document (or organization) from which information is obtained

"The reporter had two sources for the story."

noun: a publication (or a passage from a publication) that is referred to

"He spent hours looking for the source of that quotation."

noun: the place where something begins, where it springs into being

"Pittsburgh is the source of the Ohio River."

noun: anything (a person or animal or plant or substance) in which an infectious agent normally lives and multiplies

noun: someone who originates or causes or initiates something

noun: a person who supplies information

noun: (technology) a process by which energy or a substance enters a system

"A heat source."

verb: specify the origin of

"The writer carefully sourced her report."

verb: get (a product) from another country or business

"She sourced a supply of carpet."