"COMPLEMENT" and "COMPLIMENT"

"Complement" means to complete or enhance. "Compliment" means to praise or express admiration. Ex.: The dessert complements the meal beautifully. He received a heartfelt compliment on his performance.

"IMPLY" and "INFER"

"Imply" means to suggest indirectly. "Infer" means to deduce or conclude from evidence. Ex.: Her silence seemed to imply disapproval. From her reaction, we can infer that she is unhappy.