give notice

(verb) terminate the employment of; discharge from an office or position. Synonyms: displace, fire, give notice, can, dismiss, give the axe, send away, sack, force out, give the sack, terminate. Examples: "The boss fired his secretary today." "The company terminated 25% of its workers."

(verb) inform (somebody) of something. Synonyms: advise, notify, give notice, send word, apprise, apprize. Example: "I advised him that the rent was due."