What does "lipread" mean?

To determine a person's speech by watching the movement of their lips.

What is a synonym for "lipread"?

Common synonyms include: lip reading, lip-read, lip-reading, lipreading, read lips, speech-read.

/ˈlɪpɹiːd/ verb

verb ·Rare ·Advanced level

Verb

1
To determine a person's speech by watching the movement of their lips. intransitive, transitive
2
interpret by lipreading; of deaf people wordnet

From lip + read.