Mentioned vs Mentionned: Stop Making This Costly Error

Mentioned vs Mentionned has a one-word answer: “mentioned” is correct, and “mentionned” is a misspelling. The word has only one “n” before “-ed.” You write “I mentioned it yesterday,” not “I mentionned it yesterday.”

This guide explains why the Mentioned vs Mentionned mix-up happens and how the spelling rule works. You will also see examples, common mistakes, similar word pairs, and easy ways to remember the right form.

Mentioned vs Mentionned: The Short Answer You Need

Mentioned vs Mentionned comes down to one rule. “Mentioned” is correct. “Mentionned” is incorrect.

The verb “mention” is regular, so you add “-ed” to form the past tense. The final “n” does not double.

Correct: “She mentioned the deadline in her email.”
Incorrect: “She mentionned the deadline in her email.”

Which Spelling is Correct?

Only “mentioned” is correct. This holds in every use: simple past (“he mentioned”), past participle (“has mentioned”), passive (“was mentioned”), and adjective (“the mentioned items”). There is no sentence where “mentionned” becomes acceptable.

What does “mentioned” mean?

“Mentioned” means spoke or wrote about something briefly.

Why do People write “mentionned”?

The Mentioned vs Mentionned mix-up has three common causes: the French spelling “mentionné,” a wrongly applied doubling rule, and overtrusting spellcheck. Each one is explained with examples in the mistakes section below.

What Does “Mentioned” Actually Mean?

To mention something is to refer to it without giving much detail. That is the difference between mentioning and discussing. When you mention a topic, you name it and move on.

Example: “He mentioned the trip but gave no details.” You know a trip exists, and that is all.

Definition of Mentioned

“Mentioned” is the past tense and past participle of the verb “mention,” which means to refer to someone or something briefly. It can also work as an adjective before a noun, as in “the above-mentioned policy.”

Simple examples

• “My teacher mentioned a new project.”
• “You never mentioned that you play the piano.”
• “The problem was mentioned in the first paragraph.”

Real-life analogy

Think of mentioning as a quick wave across the street. Discussing is the long chat over coffee. A wave tells the person you noticed them, but it does not say much else. A mention works the same way in a sentence.

Word Forms of “Mention” You Should Know

Form	Example
mention (base)	“Please don’t mention it.”
mentions	“She mentions the cost twice.”
mentioned (past, past participle)	“He mentioned a delay.”
mentioning	“I’m mentioning this for your benefit.”
mentionable	“Nothing in the report was worth mentioning.” (adjective: mentionable)
unmentionable	“Some topics are unmentionable at dinner.”
aforementioned / above-mentioned	“The aforementioned rule applies.”

Notice that none of these forms has a double “n.”

Why “Mentionned” Is Incorrect in English

“Mention” is a regular verb. Regular verbs form the past tense by adding “-ed” to the base word, with no extra letters. Standard dictionaries such as Merriam-Webster and Cambridge list “mentioned” as the past form and do not list “mentionned.”

The spelling rule behind it

English doubles a final consonant before “-ed” in two cases:

1. The word has one syllable and ends in vowel + consonant: stop → stopped, plan → planned.
2. The word has more than one syllable and the last syllable is stressed: refer → referred, commit → committed.

“Mention” is pronounced MEN-tion. The stress falls on the first syllable, and the last syllable is weak. Neither case applies, so the “n” stays single.

Why no double “n”?

Doubling a consonant helps protect a short vowel sound. Without it, “stoped” would look like it rhymes with “hoped.” The doubled “p” in “stopped” signals a short vowel.

In “mentioned,” the vowel before the “n” is weak and unstressed. There is no short vowel that needs protecting. The extra “n” would add nothing.

The simple takeaway

Mention + ed = mentioned. No extra letters.

Mentioned vs Mentionned: Side-by-Side Comparison

This table sums up Mentioned vs Mentionned at a glance.

Feature	Mentioned	Mentionned
Correct?	Yes	No
In standard dictionaries?	Yes	No
“n” before “-ed”	One	Two
Example	“She mentioned it.”	“She mentionned it.”
Should you use it?	Always	Never

Real Examples of “Mentioned” in Everyday English

In casual conversation

• “You never mentioned you could cook!”
• “Did anyone mention what time dinner is?” (Here the base form “mention” is used after “did.”)

In academic writing

• “The author mentioned two limitations in the study design.”
• “As mentioned in Chapter 2, the sample was small.”

In business communication

• “As I mentioned in Monday’s meeting, the report is due Friday.”
• “The client mentioned a budget change.”

In formal writing

• “The above-mentioned clause applies to all tenants.”
• “The committee mentioned the matter in its minutes.”

Common Mistakes People Make With “Mentioned”

Most Mentioned vs Mentionned errors come from four habits.

Adding an extra “n”

Incorrect: “He mentionned the price.”
Correct: “He mentioned the price.”
Why: The base word already ends in “n.” Just add “-ed.”

Mixing language patterns

French uses “mentionner” and “mentionné,” both with a double “n.” Learners who know French may blend that spelling with the English “-ed” ending.

Incorrect: “As mentionned above, the results vary.”
Correct: “As mentioned above, the results vary.”
Why: English drops the second “n” when adding “-ed.”

Overthinking grammar rules

Learners know that “stop” becomes “stopped” and “plan” becomes “planned.” They then apply the doubling rule to every verb.

Incorrect: “She questionned the result.”
Correct: “She questioned the result.”
Why: The doubling rule only applies to short words or words with a stressed final syllable.

Trusting incorrect auto-corrections

Spellcheck is usually helpful, but it is not perfect. It may be turned off, set to another language, or have the misspelling saved in a custom dictionary. Read your final draft once yourself.

Grammar Tips to Use “Mentioned” Correctly

As a verb (past tense)

Use “mentioned” for a completed action in the past.
“She mentioned the schedule yesterday.”

As a past participle

Use “mentioned” after have, has, or had.
“I have mentioned this twice already.”

In passive voice

Use be + “mentioned” when the focus is the thing mentioned, not the person.
“The issue was mentioned in the report.”

In reported speech

“Mentioned” often introduces a reported idea.
“She told me she had mentioned the problem to her manager.”
“He mentioned that the store closes early.”

Quick rule to remember

For Mentioned vs Mentionned, remember: base word + “-ed,” nothing else.

British vs American English: Any Difference?

Short answer

No. Mentioned vs Mentionned is not a British-American difference. Both varieties spell the word “mentioned.” Some verbs, like “travelled” and “traveled,” do differ between the two, but “mention” is not one of them.

Why this matters

A small spelling slip changes how readers see you. In an email, a CV, an essay, or a published article, it can suggest carelessness, even when your ideas are strong. The Mentioned vs Mentionned slip is easy to spot, so it stands out.

Words That Confuse People Just Like “Mentioned”

Many verbs ending in a consonant cause the same doubt. Learners wonder whether to double the last letter, and the answer depends on the word, as the next section shows.

Commonly confused spelling pairs

Correct	Incorrect	Stress pattern	Doubled?
questioned	questionned	QUES-tion	No
positioned	positionned	po-SI-tion	No
visited	visitted	VIS-it	No
occurred	occured	oc-CUR	Yes
preferred	prefered	pre-FER	Yes
committed	commited	com-MIT	Yes

What they all have in common

Stress decides everything. Mentioned vs Mentionned follows the same pattern as “questioned” and “visited”: the stress is early, so the final consonant stays single. Words like “occurred” and “preferred” are stressed on the last syllable, so they double.

How to Remember the Correct Spelling Easily

Simple trick

Remember the chunk “-tioned.” It appears in “mentioned,” “questioned,” “cautioned,” and “positioned.” You never see “-tionned” in standard English.

Visual memory hack

Look at the shape of the ending: i-o-n-e-d. The “n” sits alone between “o” and “e.” Picture it as a single stepping stone with no twin beside it.

Proofreading habit

Before you publish or send anything, use the search function (Ctrl+F or Cmd+F) to look for “ionned.” This catches “mentionned,” “questionned,” and “positionned” at once. Searching for “nn” instead would flag correct words like “planned,” so “ionned” is more precise.

Case Study: How a Small Spelling Error Can Matter

This is a hypothetical scenario for illustration, not a reported case.

Situation

Maya is applying for a project coordinator job. In her cover letter she writes, “As mentionned in my CV, I have three years of experience.”

Outcome

The recruiter notices the typo. One slip does not decide an application, but for a role that depends on attention to detail, it makes the reader pause. A Mentioned vs Mentionned error is small, but it is also very easy to avoid.

Fixed version

“As mentioned in my CV, I have three years of experience.”

Key lesson

Proofread the connecting phrases you write most often, such as “as mentioned,” “as discussed,” and “as noted.” They are written quickly, so errors hide there.

Expert Insight on “Mentioned” Usage

From an editing point of view, “mentionned” is one of the simplest errors to fix because it has no exceptions. The verb is regular, standard dictionaries list only “mentioned,” and the word follows the usual stress rule.

The only time you would write “mentionned” on purpose is when quoting someone else’s error or discussing the misspelling itself, as this article does. In Mentioned vs Mentionned questions, a good editor does not need to look anything up: the rule is “mention” plus “-ed.”

Conclusion

Mentioned vs Mentionned has a clear winner: “mentioned” is correct, with one “n” before “-ed.” “Mentionned” is only a spelling error. The word is a regular verb, and its stress falls on the first syllable, so the final “n” never doubles.

Next time Mentioned vs Mentionned slips into your draft, look for the “-tioned” ending, the same one in “questioned” and “positioned.” A quick search for “ionned” before you publish will catch the mistake in seconds.