How to Cite a Dictionary Entry in Chicago 18th edition (notes and bibliography)

Dictionary entries and word definitions.

Example in Chicago 18th edition (notes and bibliography)

Cited in the notes only. This style gives it no entry in the bibliography.

Footnote Oxford English Dictionary, “Algorithm” (Oxford University Press, September 2025), https://doi.org/10.1093/OED/1019775631.

What Chicago 18th edition (notes and bibliography) includes

These are the details of the example above that the style prints, so they are the ones to collect for your own source.

  • Term/Word
  • Dictionary
  • Publisher
  • Date Published
  • DOI

Include the headword or entry term, dictionary title, edition, and year. For online dictionaries, note the URL and access date.

The formatting comes from the style's own file, so check the finer points against your guide. What to check by hand in Chicago 18th edition (notes and bibliography).