origin, source, inception, root mean the point at which something begins its course or existence. origin applies to the things or persons from which something is ultimately derived and often to the causes …

SOURCE definition: any thing or place from which something comes, arises, or is obtained; origin. See examples of source used in a sentence.

1. any thing or place from which something comes or is obtained; origin. 2. the beginning or place of origin of a stream or river. 3. a book, person, document, etc., supplying esp. firsthand information. 4. …

SOURCE definition: 1. the place something comes from or starts at, or the cause of something: 2. someone or something…. Learn more.

Look up source or unsourced in Wiktionary, the free dictionary.

Jan 20, 2026 · Noun source (plural sources) The person, place, or thing from which something (information, goods, etc.) comes or is acquired.

A source is a point of origin or supply from which something is obtained or derived. This can refer to a variety of contexts such as a person who provides information, a document from which information is …

Determining if a source is primary, secondary or tertiary can be tricky. Below you will find a description of the three categories of information and examples to help you make a determination.

The noun source describes an origin, like the source who gave the journalist the information that broke a new story, or the place something originates, like the source of a river, or the Web site that is your …

Definition of source noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.