source is on the Academic Word List. Pronunciation (UK) IPA (key): /sɔrs/, SAMPA: /sOr\s/ (US) IPA (key): /soʊrs/, SAMPA: /soUr\s/ Audio (US)(file) Audio (UK)(file) Homophone: sauce Plain form source Third-person singular sources Past tense sourced Past participle sourced Present participle sourcing If you source something, then you obtain or receive it. Singular source Plural sources Source is on the Academic Vocabulary List. The source of some material, an idea, a product, etc. is the place it came from originally. Antonym: target XYZ company can't supply these parts anymore, so we need to find a new source. Church sources said four people were injured and 100 to 200 were taken away by the police. The paper comes primarily from British sources. CO2 is the main source of global warming. Related words outsource