(1):

(v. t.) To counsel against wrong practices; to cation or advise; to warn against danger or an offense; - followed by of, against, or a subordinate clause.

(2):

(v. t.) To warn or notify of a fault; to reprove gently or kindly, but seriously; to exhort.

(3):

(v. t.) To instruct or direct; to inform; to notify.