Voice/vɔɪs/ Definition 1 of 6Pro Tip 1/3Emotional Expression The tone of voice can convey emotions like happiness or anger. You could hear the joy in his voice. Pro Tip 2/3Volume Change Changing voice volume can show respect, aggression, or the need for attention. Please lower your voice in the library. Pro Tip 3/3Voice Clarity Speak clearly to be understood easily, especially in noisy places. His voice was clear even with the background noise.