definition of
source

[1] #1 source n. [beginning, origin, root, rootage] the place where something begins, where it springs into being; "the Italian beginning of the Renaissance"; "Jupiter was the origin of the radiation"; "Pittsburgh is the source of the Ohio River"; "communism's Russian root". wn

[2] #2 source n. a document (or organization) from which information is obtained; "the reporter had two sources for the story". wn

[3] #3 source n. [seed, germ] anything that provides inspiration for later work. wn

[4] #4 source n. a facility where something is available. wn

[5] #5 source n. [informant] a person who supplies information. wn