Lipreading is the more familiar term for speechreading.
Many people interpret lipreading as the ability to recognise the different sounds of speech by observing movements of the lips, tongue and jaw. Even people with normal hearing use lipreading to some degree in communications.
However, not all Deaf and hard-of-hearing people are highly skilled in lipreading. Those who have developed this skill over many years of practice. Others who lose their hearing over time may not be as skilled and will use other methods of communication.