—v.t. 1. to perceive by the ear: Didn't you hear the doorbell? 2. to learn by the ear or by being told; be informed of: to hear news. 3. to listen to; give or pay attention to: They refused to hear our side of the argument. 4. to be among the audience at or of (something): to hear a recital. 5. to give a formal, official, or judicial hearing to (something); consider officially, as a judge, sovereign, teacher, or assembly: to hear a case. 6. to take or listen to the evidence or testimony of (someone): to hear the defendant. 7. to listen to with favor, assent, or compliance.
8. (of a computer) to perceive by speech recognition.
—v.i. 1. to be capable of perceiving sound by the ear; have the faculty of perceiving sound vibrations.
2. to receive information by the ear or otherwise: to hear from a friend. 3. to listen with favor, assent, or compliance (often fol. by of): I will not hear of your going. 4. (of a computer) to be capable of perceiving by speech recognition.
5. (used interjectionally in the phrase Hear! Hear! to express approval, as of a speech).