The face is itself a highly sensitive region of the human body and its expression may change when the brain is stimulated by any of the many human senses, such as touch, temperature, smell, taste, hearing, movement, hunger, or visual stimuli.
Define face. face synonyms, face pronunciation, face translation, English dictionary definition of face. n. 1. a. The surface of the front of the head from the top of the forehead to the base of the chin and from ear to ear. b. A person: We saw many new faces...