Sign language; a visual language used by deaf or hard-of-hearing people, using hand movements and facial expressions to convey meaning.
彼女は手話を学んで聴覚障害の友達と話す。
She learned sign language to talk with her deaf friend.
会議では手話通訳が同時に入った。
A sign language interpreter was present at the conference.
子どもたちが歌に合わせて手話で表現した。
The children expressed the song using sign language.