A compliment is a positive remark or expression of praise.
- She gave me a lovely compliment.
- He complimented her on her work.
- Thank you for the compliment.
A complement is something that completes or goes well with something else.
- The sauce complements the meal.
- Those shoes complement your outfit.
- The two colours complement each other.
Easy way to remember
Compliment = praise.
Complement = complete or go well together.