Collins COBUILD Advanced Learner's English Dictionary - source

(sources, sourcing, sourced) Frequency: The word is one of the 1500 most common words in English. 1. The source of something is the person, place, or thing which you get it from. Renewable sources of energy must be used where practical... Tourism, which is a major source of income for the city, may be seriously affected. N-COUNT: usu N of n 2. In business, if a person or firm sources a product or a raw material, they find someone who will supply it. (BUSINESS) Together they travel the world, sourcing clothes for the small, privately owned company... About 60 per cent of an average car is sourced from outside of the manufacturer. VERB: V n, V n 3. A source is a person or book that provides information for a news story or for a piece of research. Military sources say the boat was heading south at high speed... N-COUNT: usu with supp 4. The source of a difficulty is its cause. This gave me a clue as to the source of the problem. = cause N-COUNT: N of n 5. The source of a river or stream is the place where it begins. ...the source of the Tiber. N-COUNT: usu sing