"COMPLEMENT" and "COMPLIMENT"

"Complement" means to complete or enhance. "Compliment" means to praise or express admiration. Ex.: The sauce complements the dish perfectly. She complimented him on his presentation.

"ADVICE" and "ADVISE"

"Advice" is a noun. "Advise" is a verb. Ex.: His advice was invaluable. Can you advise me on this issue?