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noun

a spring, fountain, etc. that is the starting point of a stream
that from which something comes into existence, develops, or derives: the sun is our source of energy, the source of a difficulty
1. any person, place, or thing by which something is supplied: a source of pleasure
2. a person, book, document, etc. that provides information: to consult various sources
the point or thing from which light rays, sound waves, etc. emanate

transitive verb, intransitive verb sourced, sourcing

☆ to obtain (parts, materials, etc.) from a source of supply
☆ to identify the source of (information, quotations, etc.)

See source in American Heritage Dictionary 4

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source (synonyms)

SOURCE (abbreviation)

source (computer)