Laryngitis, Aphony, and Aphonia are all medical terms related to the loss of voice. Laryngitis is an inflammation of the larynx, which is the organ responsible for producing sound. Aphony is a complete loss of voice due to a physical or psychological cause. Aphonia is a partial or total inability to speak due to a physical or psychological cause. All three of these terms refer to the same condition, which is the loss of voice.