"ADVICE" and "ADVISE"

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

"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.