A compliment expresses praise; a complement completes, balances, or enhances something. The two words sound alike, but their spelling follows their function.
Understanding Compliment and Complement
The word compliment (with an “i”) primarily refers to an expression of praise, admiration, or respect. It can be used as both a noun and a verb. As a noun, a compliment is a kind or flattering remark made about someone or something. For example, when you say to someone, “Your presentation skills are impressive,” you are giving a compliment. As a verb, to compliment someone means to make such a positive remark or to praise them. For instance, “She complimented him on his excellent performance” means she expressed admiration toward him verbally or in writing. Compliments can be formal or informal, and they often serve to show appreciation, kindness, or goodwill. In the phrase “compliments of the hotel,” compliments identifies the provider of a courtesy. The related adjective complimentary directly describes something offered free of charge[1][2].
On the other hand, complement (with an “e”) is used to denote something that completes or enhances another thing. It implies completion, perfection, or improvement by adding something that fits well or balances the whole. Complement can also be a noun or a verb. As a noun, a complement is something that completes or enhances another, as in “The scarf is a perfect complement to the suit” or “a team with a full complement of players.” As a verb, to complement means to complete or improve by providing what is lacking or necessary. For example, “The acidity of the wine complements the flavor of the fish” means the wine enhances the taste experience. Complement also has technical meanings in mathematics and economics[3][3][1][2].
Original Examples Demonstrating the Difference
- Compliment:
- “I want to compliment you on your thoughtful and clear explanation during the meeting.”
- “She received many compliments on her artistic talent.”
- Complement:
- “The blue tie perfectly complements his gray suit, adding a touch of color.”
- “Their skills complement each other well, creating an efficient working team.”
These examples illustrate that a compliment deals with praising or admiring someone or something, while a complement focuses on completing or enhancing it.
Helpful Memory Trick
To keep the two words distinct, remember that compliment contains the letter “I,” which you can associate with admIration or the opposite word Insult (since a compliment is the opposite of an insult). Meanwhile, complement contains an “E,” which stands for Enhance, a synonym of complement. This mnemonic helps clarify usage and spelling[1].
In daily language:
- Use compliment when you intend to praise or offer admiration.
- Use complement when you mean to complete, balance, or enhance something else.
The adjective forms follow similar patterns: complimentary means giving praise or free of charge (e.g., a complimentary breakfast), while complementary means completing or enhancing qualities (e.g., complementary skills or colors)[1].
Common Confusions and How to Avoid Them
People often confuse compliment and complement because of their identical pronunciations (homophones). This confusion is especially common in spoken English and informal writing. A practical way to avoid mistakes is to consider the role each word plays in a sentence:
- If the sentence involves praising, admiring, or expressing positive regard, the correct word is compliment.
- If the sentence involves adding, enhancing, or completing something, then complement is appropriate.
For example, consider these two sentences:
- “She gave him a __________ on his new haircut.”
- “The red wine was a perfect __________ to the steak.”
In sentence 1, the blank should be filled with compliment because the context is praising. In sentence 2, it should be complement because the wine completes or enhances the steak.
Practice Sentences for Clarity
Try filling in the blanks with the correct form:
- 1. “Your scarf __________ your outfit beautifully.”
- “He received a __________ on his handling of the project.”
- “The spicy sauce __________ the dish’s mild flavors.”
- “She offered a kind __________ on my presentation.”
- “The hotel provided __________ breakfast.”
- “The two researchers have __________ skills.”
Answer key: 1. complements; 2. compliment; 3. complements; 4. compliment; 5. complimentary; 6. complementary.
Edge Cases: Complimentary vs Complementary
The adjective forms complimentary and complementary often cause confusion because they look similar but have distinct meanings:
- Complimentary primarily means expressing praise or admiration (e.g., “a complimentary remark”) or provided free of charge (e.g., “complimentary tickets”).
- Complementary means combining in such a way as to enhance or complete each other (e.g., “complementary colors” or “complementary skills”).
Understanding these adjective forms expands correct usage beyond the nouns and verbs. For example, in hospitality, “complimentary breakfast” means breakfast provided for free, while in art, “complementary colors” describe colors opposite on the color wheel that enhance each other’s visual effect.
Technical and Specialized Uses
The word complement finds frequent usage in specialized fields:
- Mathematics: Two angles are complementary if their measures add up to 90 degrees.
- Economics: Complementary goods are often consumed together. A change that makes one good cheaper or more useful can increase demand for the other, as with printers and ink cartridges.
These specialized uses underscore how complement relates to the idea of completing or enhancing within specific contexts, unlike compliment, which remains rooted in praise.
Summary Table
| Word | Part of Speech | Meaning | Example Sentence |
|---|---|---|---|
| Compliment | Noun/Verb | Expression of praise or admiration | “She complimented his excellent writing.” |
| Complement | Noun/Verb | Something that completes or enhances | “The wine complements the cheese perfectly.” |
| Complimentary | Adjective | Expressing praise; free of charge | “He made a complimentary remark.” / “Complimentary snacks were offered.” |
| Complementary | Adjective | Completing or enhancing | “They have complementary skills.” |
Use the spelling cue at the point of choice: compliment for admiration; complement for enhance or complete.