Getting the right citation format for a dictionary term is a challenge in academic writing that’s surprisingly tricky to get right. Especially when it comes to research papers, making mistakes can have serious consequences – it’s not just about showing where you got your info from, it’s about boosting the credibility of your argument. That’s where this guide comes in – we’re going to cut through the confusion and show you, step by step, how to cite dictionaries in the most commonly used styles, including MLA, APA, and Chicago.
TLDR: Your Quick Citation Cheatsheet
- MLA 9 (Online): “Term.” Oxford English Dictionary, Oxford University Press, date of term’s last update, www.oed.com/view/Entry/entry-id. Accessed Date you viewed it.
- APA 7 (Online): Oxford University Press. (n.d.). Term. In Oxford English Dictionary. Retrieved Date you viewed it, from https://www.oed.com/view/Entry/entry-id
- Chicago (Note): Oxford English Dictionary, s.v. “term,” accessed Date, https://www.oed.com/view/Entry/entry-id.
- For Print Dictionaries: Replace URL with publisher info, publication year, and page number.
Why Citing the Oxford English Dictionary Is a Big Deal
At first glance, citing a dictionary might seem like an unnecessary hassle. I mean, it’s just a word, right? But the Oxford English Dictionary is so much more than that. It’s a treasure trove of historical records and etymological insights that can add depth and context to your writing. And when you cite a definition, you’re not just defining a word – you’re providing a clear, verifiable link that lets your reader follow your research trail. I’ve been there – getting a lower grade on a paper for a messy bibliography was a valuable lesson that stuck with me: the details in academic writing are never just details – they’re the foundation of your work.
Quick Tip: Always check if you are using the free Oxford Learner’s Dictionaries or the subscription-based OED. They are different websites and should be cited as such. The OED is the comprehensive historical dictionary. There are many useful websites for students.
How to Cite Oxford Dictionary MLA 9 Edition
The Modern Language Association (MLA) format is the standard for humanities papers and prioritizes the author, but since dictionary entries aren’t usually signed, we start with the entry title in quotation marks – that’s how you cite a dictionary in MLA.
Citing the Online Oxford English Dictionary
But what if you’re using one of those massive print volumes of the OED? Then your citation changes slightly. You’ll need the publication info from the book’s copyright page, including the volume number and page number. And of course, the publisher is also a must-have for this citation.
MLA Works Cited Template:
“Title of Entry.” Oxford English Dictionary, Oxford University Press, the Publisher, Date of last update, URL. Accessed Date of access.
Example:
“Kerfuffle, n.” Oxford English Dictionary, Oxford University Press, Sept. 2024, www.oed.com/view/Entry/103039. Accessed 20 July 2025.
MLA In-Text Citation
For your in-text citation, you just need the entry title in quotation marks. This simple reference points the reader to the full citation in your Works Cited list. A good text citation is concise, often just the first few words of the title.
Example:
The term was first recorded in the 19th century, initially as “carfuffle” (“Kerfuffle, n.”).
Citing a Specific Definition
What if a word has multiple meanings? The OED is famous for this. MLA has a clear rule for this scenario, which you can read about in detail on their official site, that answers, How do I cite a term in an online or print dictionary that lists several numbered definitions? After the entry title in your in-text citation, add the abbreviation “def.” and the relevant number or letter. The first letter of the word should be capitalized as usual. Every letter and the first letter must be correct.
Example:
While “literally” can mean “in a literal manner,” its informal use as an intensifier is also acknowledged (“Literally, adv.”, def. 1c).
Citing a Print Edition of the OED
If you’re using one of those majestic, hefty print volumes of the Oxford English Dictionary, the citation changes a little. You’ll need the publication information from the book’s copyright page, including the volume number and page number, as well as the publisher.
MLA Works Cited Template (Print):
“Title of Entry.” The Oxford English Dictionary, 2nd ed., vol. Volume Number, Clarendon Press, the Publisher, 1989, p. Page Number.
MLA In-Text Citation (Print):
Your in-text citation should include the page number, so your reader can easily find the term on the right page. But to make this work, you need to find the correct page and the correct edition for a print source.
The etymology of “serendipity” is famously traced back to a Persian fairy tale (“Serendipity,” p. 529).
Citing the Oxford English Dictionary in APA Style
The American Psychological Association (APA) style is a bit different – it places a big emphasis on the date of publication. When you’re citing a dictionary in APA, you treat the publisher or organisation as the author if there isn’t one. For a massive work like the OED, the publisher is Oxford University Press, which is a big part of citing dictionaries in APA.
A key distinction in APA is whether the source is continuously updated or is a fixed, archived version. The main OED website is an online version that is updated, so we use “(n.d.)” for “no date”. An archived version would have a specific publication date.
APA Reference List Entry
Here’s how to format your reference on the final page of your paper – and it’s a bit different from MLA. Plus, each term needs a full reference, so you need to get it right.
APA Reference Template:
Oxford University Press. (n.d.). Entry title. In Oxford English Dictionary. Retrieved Date you accessed it, from https://www.oed.com/view/Entry/entry-id
Example:
Oxford University Press. (n.d.). Gobsmacked, adj. In Oxford English Dictionary. Retrieved July 20, 2025, from https://www.oed.com/view/Entry/79224
APA In-Text Citation
APA in-text citations require the author (which is often the group author) and the year of publication. Since the OED online is constantly getting updated, we use n.d. for the date – and it’s also helpful to specify the term being cited. This text citation is pretty crucial for your writing.
Example:
The term is a vivid British colloquialism expressing utter astonishment (Oxford University Press, n.d., “Gobsmacked” entry).
For more detailed examples, the official APA Style site provides excellent guidance on Dictionary Entry References, covering both online and print sources. If you need to create many citations quickly, a free citation generator can speed up the process, but always double-check its output for accuracy.
How to Handle Chicago Style (CMOS)
The Chicago Manual of Style is a bit flexible when it comes to dictionary citations. For a well-known reference work like the OED, Chicago often lets you get away with just a simple note in the text – but you need to be consistent when you do cite the dictionary.
Chicago Note-Only Citation
This is the simplest way to cite the dictionary. The abbreviation “s.v.” stands for sub verbo, which is Latin for “under the word.”
Note Template:
1. Oxford English Dictionary, 2nd ed. (1989), s.v. “term.”
For the Online Edition:
2. Oxford English Dictionary, s.v. “term,” accessed Date, URL.
Chicago Author-Date Style
If your discipline uses author-date parenthetical notes, you would create a full reference list entry. The official Chicago Style Q&A suggests treating the OED like a book written by its editors. The publisher and volume are important here. This volume information is key, as is the correct volume number.
Reference List Entry (Print):
Simpson, J. A., and E. S. C. Weiner, eds. 1989. The Oxford English Dictionary. 2nd ed. 20 vols. Oxford: Clarendon Press, the Publisher.
Your in-text note would then be (Simpson and Weiner 1989). This is a more formal approach for extensive work with the same edition of the dictionary.
Common Mistakes and Quick Fixes
Getting the perfect citation right can be a bit of a slog – a misplaced comma or an incorrect date can make your referencing look a bit sloppy. But here’s a table of common errors to help you avoid the pitfalls and produce a clean bibliography for all the dictionaries you’ve cited. Every page of your work has to be perfect, including the ones at the back.
| Common Mistake | Why It’s an Issue | How to Fix It |
|---|---|---|
| Forgetting the access date in MLA. | Online content can change. The access date shows the version you saw. | Always add “Accessed Day Month Year” at the end of your MLA online source note. |
| Using the wrong URL. | A URL from behind a library paywall won’t work for most people. | Use the direct permalink to the definition on the main OED website if possible. |
| Mixing up MLA and APA author formats. | It shows inconsistency in your citation style. | Remember: MLA uses full names (“Doe, John”), while APA uses initials (“Doe, J.”). For the OED, this often applies to the editors. |
| Not specifying the volume and page for print versions. | The print OED is massive. Without a volume number and page number, finding the term is nearly impossible. This page is important. | Always include the volume and page numbers in your documentation for a physical book. Each page matters. A good publisher will make this clear. |
Learning how to handle sources is a core skill for academic work. For broader guidance, exploring articles on citation practices, how to cite various websites, or even a general overview of how to cite a dictionary can build a solid foundation for all your academic writing.
Frequently Asked Questions
How do you cite Dictionary.com in APA?
In the case of the OED, you can treat the organisation as the author, like this: Dictionary.com (n.d.). Term. In Dictionary.com. Retrieved Date, from URL. The in-text citation would be (Dictionary.com, n.d.): pretty simple.
How to cite the Oxford Dictionary in MLA 9?
For the online version, you use a slightly different format – “Term.” Oxford English Dictionary, Oxford University Press, Date of last update, URL. Accessed Date of access. And then in the in-text note, you just use the term’s title in quotation marks, like this: (“Term”).
How to cite the OED in Bluebook?
And then there’s the Bluebook style, used in legal writing – it’s got its own special format. But for the OED it usually looks like this: OXFORD ENGLISH DICTIONARY 123 (3d ed. 2010) or if you’re referring to a specific definition: OXFORD ENGLISH DICTIONARY s.v. kerfuffle (3d ed. 2010). But be sure to identify the correct edition you’re using when you cite the dictionary. This is pretty much standard for most dictionaries. In MLA, you kick off the Works Cited entry with the title of the term in question. In APA, you get to use the organization that put the dictionary out as a group author – Oxford University Press, for instance. Editors just aren’t included.
What if there is no author listed for a definition?
This is standard for most dictionaries. In MLA, you start the Works Cited entry with the title of the term. In APA, you use the organization that published the dictionary (e.g., Oxford University Press, the publisher) as a group author. The editors are not listed here.
What if the online entry has no copyright date or update date?
If it’s not possible to track down a publication date, APA style falls back on the abbreviation “n.d.” meaning no date. MLA style lets you just leave that element out altogether and move on to the URL and your access date. The OED, on the other hand, usually kicks out a month and year for its latest updates to definitions. But the copyright date is a different story