mouthed
v. C1 Advanced US //ˈmaʊðd// UK //mˈaʊðd// mouthed
v. to move your lips as if you are speaking, but without making any sound. You often do this when you want to tell someone something secretly.
v. to form words with the lips without using the voice. Often used to communicate silently in situations where noise is prohibited or impossible.
She mouthed the words 'thank you' from across the room.
During the school play, the teacher stood in the wings and silently mouthed the lines to the nervous actors.
As the noisy train pulled away from the platform, he desperately mouthed a final message to his friend through the thick glass window.
Usage
The verb is transitive and requires a direct object, typically the words or message being conveyed.