Quick Answer: E vs. I
✅ Complement
Spelled with an E.
Means to complete, enhance, or perfect something.
“The red tie complements his suit.”
✅ Compliment
Spelled with an I.
Means to give praise, admiration, or something free.
“She gave him a nice compliment.”
Mixing up complement and compliment is one of the most common mistakes in English writing. It happens to the best of us because these two words are homophones—they sound exactly the same but have entirely different meanings and spellings. Whether you are writing an email to a client or posting a caption on social media, using the wrong one can slightly alter your message or make you look less professional.
The confusion stems from a single letter change: E versus I. Once you understand the logic behind that one letter, you will never mix them up again.
What Does Complement Mean?
When you see the word complement, think of the word complete. They share the same Latin root. A complement is something that fills up, completes, or makes another thing perfect.
It is rarely about people being nice to each other; it is usually about two things working together to create a better whole.
As a Noun
It refers to a thing that enhances something else.
“Strawberries are a perfect complement to champagne.”
As a Verb
It means the action of adding to something to improve it.
“Her calm personality complements his energetic style.”
What Does Compliment Mean?
On the other hand, compliment is all about praise, admiration, or flattering words. If you are saying something nice to someone, you are using the version with an I.
There is also a secondary meaning you see often in hotels or marketing: free of charge.
As a Noun
An expression of praise.
“He received a lovely compliment on his cooking.”
As a Verb
To praise someone politely.
“I must compliment you on your excellent staff.”
💡 Bonus Meaning: “Complimentary” Items
If you get a free drink or a free ticket, it is complimentary (with an I). Think of it as the business giving you a “compliment” in the form of a gift. It is not complementary (with an E), unless that drink somehow completes you!
How to Remember the Difference
Use these simple mnemonic devices to lock it into your memory:
Complement
Start with E for Complete.
Compliment
Start with I for “I like it”.
Side-by-Side Comparison
Here is a breakdown to help you visualize the usage scenarios.
| Word | Core Meaning | Trick to Remember | Common Example |
|---|---|---|---|
| Complement | To complete, enhance, fit well. | Enhance / Complete | “That scarf complements your eyes.” |
| Compliment | To praise, flatter, or give for free. | I like it | “Thanks for the compliment!” |
Common Usage Examples
Let’s look at how these words function in real sentences. Seeing them in context is usually the best way to learn.
Scenario 1: Design and Teams
When things fit together well, use E.
- Correct: “The blue sofa complements the yellow rug perfectly.”
- Correct: “Our skills are different, but they complement each other.”
- Wrong: “The sofa compliments the rug.” (The sofa cannot speak to praise the rug!)
Scenario 2: Social Interaction
When words or kindness are involved, use I.
- Correct: “She fished for a compliment about her new car.”
- Correct: “Please accept this complimentary basket of fruit.”
- Wrong: “He paid her a complement.” (He didn’t pay her a completion.)
Frequently Confused Phrases
Be careful with these standard phrases. Autocorrect often misses these because both words are valid in the dictionary, even if they are wrong in your sentence.
❌ Wrong: “The complimentary colors look great.”
✅ Right: “The complementary colors look great.” (Colors that enhance each other).
❌ Wrong: “We offer a complementary breakfast.”
✅ Right: “We offer a complimentary breakfast.” (Free food).
