If you are choosing between acknowledgement or acknowledgment, both spellings are legitimate, but American English has a clear preference. Acknowledgment is the usual U.S. spelling, while acknowledgement is especially associated with British English and other varieties that retain the e. Merriam-Webster lists acknowledgement as a variant, and Cambridge likewise gives both forms.
The two forms have the same basic meaning. They can describe recognizing something as true, showing appreciation, confirming receipt, or formally recognizing an act or contribution. The main difference is spelling convention and regional preference, not meaning.
For EnglishShub’s general American audience, acknowledgment is the best default. However, acknowledgement should not automatically be marked as a spelling error when it appears in British or other international English.
Quick Answer
Acknowledgment is the preferred spelling in American English. Acknowledgement is also a correct English spelling and is especially common in British English. The two forms have the same basic meanings. If you are writing for a U.S. audience, use acknowledgment; if you are following British English, acknowledgement may be the preferred house style.
TL;DR
- Acknowledgment is the preferred American English spelling.
- Acknowledgement is a legitimate variant, especially in British English.
- Both forms have the same basic meanings.
- The plural forms are acknowledgments and acknowledgements.
- Do not call acknowledgement a misspelling in every context.
- For U.S. writing, choose acknowledgment and use it consistently.
Acknowledgement vs. Acknowledgment at a Glance
| Feature | Acknowledgment | Acknowledgement |
|---|---|---|
| Meaning | Recognition, admission, appreciation, or confirmation | Same |
| Spelling | Preferred in American English | Common British variant |
| Extra e | No | Yes |
| U.S. writing | Recommended | Acceptable as a variant, but less typical |
| British writing | Used | Common/preferred in many contexts |
| Plural | acknowledgments | acknowledgements |
| Pronunciation | Essentially the same | Essentially the same |
The important point is that the extra e does not create a different word. It reflects a spelling convention.
What Does Acknowledgment Mean?
Acknowledgment is a noun. At its core, it refers to recognizing, accepting, or showing awareness of something or someone.
Merriam-Webster gives several related senses, including the act of acknowledging something, recognition of an achievement, something given in recognition, and a specialized legal declaration.
Here are common uses:
- Recognition of a fact The report included an acknowledgment of the problem.
- Recognition or appreciation She received an acknowledgment for her years of service.
- Confirmation that something was received We received an acknowledgment of the application.
- A book’s acknowledgment section The author thanked her editors in the acknowledgments.
- A legal sense The document required a formal acknowledgment before an authorized official.
Cambridge similarly includes recognition of something as true, something given in thanks, and a letter or email confirming receipt.
Acknowledgment vs. Acknowledgement: What Is the Difference?
The difference is primarily regional spelling.
American English generally prefers the shorter form:
acknowledgment
British English commonly uses:
acknowledgement
This pattern is related to a broader difference in spelling conventions. American English often removes an e before certain suffixes, while British usage may retain it.
For example:
- acknowledgment / acknowledgement
- judgment / judgement
- acknowledgment / acknowledgement
However, spelling patterns are not perfectly predictable. Therefore, you should not assume that every British or American spelling follows exactly the same rule.
Both major forms remain recognizable and legitimate. Merriam-Webster explicitly lists acknowledgement as a variant of acknowledgment.
Which Spelling Should Americans Use?
For a general American audience, use acknowledgment.
This choice is especially appropriate for:
- American school assignments
- U.S. business writing
- American websites
- U.S. academic writing
- American reports
- Professional correspondence
- Books intended primarily for U.S. readers
For example:
Please send an acknowledgment when you receive the documents.
The report contains an acknowledgment of the team’s contribution.
The author included acknowledgments at the end of the book.
Using the American spelling gives your writing a consistent U.S. style.
If you are editing an international document, however, you do not necessarily need to change every acknowledgement to acknowledgment. First identify the publication’s intended English variety.
Is “Acknowledgement” Wrong?
No. Acknowledgement is not simply a misspelling.
Cambridge, Oxford, Collins, and Merriam-Webster all recognize the form. Cambridge lists acknowledgement as a variant, while Oxford gives acknowledgement with acknowledgment as an alternative.
The better question is:
Which spelling fits the English variety and style of this document?
Compare:
American English:
The committee issued an acknowledgment of the decision.
British English:
The committee issued an acknowledgement of the decision.
Both sentences are grammatically sound. The spelling simply reflects different conventions.
This distinction matters because calling every acknowledgement “wrong” would incorrectly treat a regional spelling variant as an error.
Acknowledgment or Acknowledgement in Formal Writing
Both forms can appear in formal writing. The spelling itself does not make a sentence formal or informal.
For American formal writing, choose acknowledgment:
The university issued an acknowledgment of the student’s application.
For British-style writing, acknowledgement may be the preferred form:
The university issued an acknowledgement of the student’s application.
The key is consistency.
If a report begins with American spelling, switching repeatedly to British spelling can make the document look poorly edited.
A simple rule works well:
Choose the spelling that matches your audience, then use that spelling consistently.
Plural Forms: Acknowledgments or Acknowledgements
The plural follows the same regional spelling pattern.
American English:
acknowledgments
British English:
acknowledgements
For example:
The book’s acknowledgments thanked the editor and research team.
Or:
The book’s acknowledgements thanked the editor and research team.
Cambridge specifically recognizes acknowledgments and acknowledgements for the section of a book in which an author names people or works that helped with the writing.
Book Acknowledgments
The plural is especially common when discussing the section at the beginning or end of a book.
I always read the acknowledgments before starting a new book.
The author included several pages of acknowledgements.
Both are correct within their respective spelling conventions.
Common Uses of “Acknowledgment”
1. Acknowledgment of a Fact
Use the word when someone recognizes that something is true or exists.
The apology was an acknowledgment of the mistake.
Her statement was an acknowledgment that the plan had failed.
Cambridge defines the word in part as accepting that something is true or right.
2. Acknowledgment of Help or Achievement
The noun can describe recognition or appreciation.
The team received acknowledgment for its volunteer work.
The award was an acknowledgment of his years of service.
3. Acknowledgment of Receipt
An acknowledgment can also confirm that something has been received.
I received an acknowledgment of my application.
Please send an acknowledgment when the package arrives.
This use is common in business, administration, and correspondence.
4. In Acknowledgment Of
The expression in acknowledgment of means “as recognition or appreciation of.”
The organization presented her with a certificate in acknowledgment of her service.
They donated the money in acknowledgment of the community’s support.
Collins also records this broader use of the noun for recognition and expressions of thanks.
5. Book Acknowledgments
Authors use an acknowledgments section to thank people who contributed assistance, advice, research, or other support.
The final chapter is followed by the author’s acknowledgments.
The same section may be spelled acknowledgements in British English.
Pronunciation of Acknowledgment
The spelling difference does not normally create a major pronunciation difference.
Cambridge gives the American pronunciation approximately as:
/əkˈnɑː.lɪdʒ.mənt/
The main stress falls on the second syllable: -NOL-.
A simple pronunciation guide is:
uhk-NOL-ij-muhnt
Do not pronounce the added e in acknowledgement as a separate syllable. The two spellings are essentially the same word in pronunciation.
Acknowledgment in Legal and Specialized Contexts
The word also has a specialized legal meaning.
Merriam-Webster defines a legal acknowledgment as a declaration or formal avowal of an act or fact that gives it legal validity.
For example:
The deed required a formal acknowledgment.
This is different from an ordinary acknowledgment such as:
She gave a quick acknowledgment of my greeting.
The first is a technical legal use. The second simply means recognition.
Because legal terminology can depend on jurisdiction and document type, writers should not assume that an ordinary dictionary definition explains every procedural requirement.
Acknowledgment vs. Related Words
Several words overlap with acknowledgment, but they are not always interchangeable.
| Word | Main idea | Example |
|---|---|---|
| Acknowledgment | Recognition or admission | His acknowledgment of the error was appreciated. |
| Recognition | Identifying or honoring someone/something | She received recognition for her work. |
| Admission | Acceptance that something is true, often reluctantly | His admission surprised everyone. |
| Confirmation | Verification that something is true or received | We received confirmation of the booking. |
| Appreciation | Recognition of value or gratitude | The award showed appreciation for her service. |
These words overlap, but their emphasis differs.
For instance, an acknowledgment of receipt confirms that something arrived. Appreciation focuses more strongly on gratitude. Admission can emphasize accepting an uncomfortable or previously disputed fact.
So do not replace acknowledgment with a synonym simply because the words appear related.
Common Mistakes and Corrections
Mistake 1: Calling Acknowledgement a Misspelling Everywhere
Incorrect idea: “Acknowledgement is always wrong.”
Better: Acknowledgement is a legitimate variant, especially in British English.
Mistake 2: Using the British Form in U.S. Writing Without a Reason
If you are writing specifically for an American audience, prefer:
Acknowledgment
rather than:
Acknowledgement
The second form is understandable, but the first better matches standard U.S. spelling conventions.
Mistake 3: Assuming the Two Forms Have Different Meanings
They do not normally differ in meaning.
The author wrote an acknowledgment.
The author wrote an acknowledgement.
The difference is spelling, not the underlying noun.
Mistake 4: Mixing Forms in One Document
Avoid unnecessary switching:
The report contains an acknowledgment, followed by three acknowledgements.
If both forms are not required for a specific reason, choose one spelling and stay consistent.
Mistake 5: Confusing Acknowledgment With Confirmation
These words can overlap, but they are not identical.
We received an acknowledgment of the complaint.
We received confirmation that the complaint was accepted.
The first emphasizes recognition or receipt. The second emphasizes verification.
A Simple Rule for Choosing the Correct Spelling
Use this four-step test:
- Identify your audience.
If your readers are primarily American, prefer acknowledgment. - Check the publication’s style.
A British publisher may prefer acknowledgement. - Keep the document consistent.
Do not switch between the two forms without a reason. - Do not confuse preference with correctness.
The less familiar form may still be a legitimate regional spelling.
Memory Tip
Think:
America → acknowledgment
British English → acknowledgement
The extra e can remind you of the spelling often associated with England.
This is only a memory aid, not a rule that determines every English spelling.
FAQs
Both are correct. Acknowledgment is the preferred spelling for most American English writing, while acknowledgement is especially common in British English. The two forms have the same basic meanings.
Acknowledgement is especially associated with British English, although it is also used elsewhere. American English generally prefers acknowledgment without the extra e.
Yes. Acknowledgment is one word. The variant acknowledgement is also one word. Neither should be written as separate words.
The American plural is acknowledgments. The corresponding British spelling is acknowledgements. Both follow the spelling convention used for the singular noun.
Yes. Acknowledgment is the safest choice for an American essay, assignment, report, or professional document. If your instructor or organization follows another English variety, follow its established style instead.
In a book, acknowledgments usually refers to a section where the author thanks people or organizations that helped with the work. British publications may spell the heading acknowledgements.
They can overlap, but they are not always identical. Acknowledgment can mean recognizing a fact, receiving something, showing appreciation, or formally recognizing an act. Recognition more specifically emphasizes identifying, accepting, or honoring someone or something.
Test Your Understanding
1. Which spelling is generally preferred in American English?
A. Acknowledgement
B. Acknowlegement
C. Acknowledgment
D. Acknowlidgment
2. Which sentence uses the American spelling correctly?
A. The author included an acknowledgement section.
B. The author included an acknowledgment section.
C. The author included an acknowlegment section.
D. The author included an acknowledgemente section.
3. What is the main difference between acknowledgment and acknowledgement?
A. Their meanings
B. Their pronunciation
C. Their grammatical category
D. Their regional spelling preference
4. Which plural form best fits standard American English?
A. Acknowledgements
B. Acknowledgments
C. Acknowledgmentes
D. Acknowledgement’s
5. Which sentence uses acknowledgment to mean recognition of a fact?
A. The report contained an acknowledgment that the original estimate was wrong.
B. The report contained an acknowledgement’s that the estimate was wrong.
C. The report contained an acknowledgmenting of the estimate.
D. The report contained an acknowledge of the estimate.
Answer Key
- C — Acknowledgment. American English generally prefers the spelling without the extra e.
- B — The author included an acknowledgment section. This follows the standard U.S. spelling.
- D — Their regional spelling preference. Both forms normally have the same meaning.
- B — Acknowledgments. This is the standard American plural.
- A — The report contained an acknowledgment that the original estimate was wrong. Here, acknowledgment means recognition or acceptance of a fact.
Conclusion
Acknowledgment and acknowledgement are both legitimate spellings of the same noun. For American English, acknowledgment is the preferred choice. British English commonly uses acknowledgement. The difference does not normally affect meaning, pronunciation, or grammatical function.
If you are writing for a U.S. audience, choose acknowledgment and use it consistently. If your publication follows British English, acknowledgement may be the better choice. The key is to distinguish regional spelling preference from genuine error.
Related Grammar and Language Guides
Afterward or Afterwards: Which Is Correct in American English?
Amongst or Among: Which Is Correct?
Setup or Set Up: Which Spelling Is Correct?
