There are two terms on Wiktionary used when we are including information from external sources.
- Quotations, also called citations, are added to entries in between definitions or in a separate ===Quotations=== section; they are also added (particularly if they are very numerous) to the pages that accompany each dictionary page. They exist to demonstrate the usage of the word. For more, see Wiktionary:Quotations.
- References are used when we are referring to information about words written by others. They are mainly used in the Etymology and Usage notes sections to demonstrate that the contents have not been made up. References can be added to an entry using footnotes or regular wikitext. <ref> tags or reference templates, and the contents of these tags will be displayed at the bottom in a ===References=== section that contains the <references/> tag. Each <references/> tag will show the information in preceding <ref> tags up to the previous <references/> tag, if one exists. A group= parameter is allowed if multiple <references/> groups are used per entry, but otherwise not needed. See Help:Footnotes for more information about how to use this feature.