Reference: APA: Dictionary

In Print
In order to cite a dictionary in APA include:
  • Name of the dictionary
  • Editor(s) of the dictionary (if known)
  • Word defined
  • Year published
  • Volume number if citing a specific entry. Use total number of volumes if citing the dictionary in general
  • Edition
  • Page numbers (if citing a specific entry)
  • Place published
  • Publisher
Format:
  • When citing a specific definition:
    • Dictionary Entry. (Year). In B. Editor (Ed.), Name of Dictionary (Page numbers, edition, volume). Place published: Publisher.
  • When citing a general dictionary:
    • Editor, B. (Ed.). (Year). Name of Dictionary (Edition, Total Volumes). Place published: Publisher.
Examples:
  • Examples of citing a general dictionary with and without an editor:
    • Weber, C. (Ed.). (2002). Webster's Dictionary (4th ed., Vols. 1-4). Chicago: Webster Press.
    • Oxford Dictionary (7th ed.). (2000). Hinsdale, IL: Penguin Press.
  • Example of citing a specific dictionary entry with and without an editor:
    • Quixotic. (1990). In N. Taparia (Ed.), Oxford Dictionary (p. 345, 3rd ed., vol. 5). New York: Oxford Press.
    • Quixotic. (1990). Oxford Dictionary (p. 345, 3rd ed., vol. 5). New York: Oxford Press.

Online
When citing an online dictionary in APA, include as much original publication information as possible, and:
  • Date Accessed
  • URL
Format:
Original Publication Information. [Retrieved] date, [from] URL of Website
Examples:
  • Virulent. (2000). Dictionary.com. Lexico Publishing Group. Retrieved August 30, 2005, from http://dictionary.reference.com/search?q=virulent