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complement (v) (n)

Complement is a verb, which means to make something seem better or more attractive when combined.

For example: "The colours blue and green complement each other perfectly."

Compliment is a noun, which means a remark that expresses approval, admiration or respect.

For example: "It was the nicest compliment anyone had ever paid me."

Tip! Having problems with your spelling? Try these mnemonics:-

If it complements something it completes it. (With an e.)

I like compliments. (With an i.)

Thanks to Georgiy Pruss for pointing out my mistake.