noun
Loanword from English; used in Japanese to refer to sign language, though 手話 (しゅわ) is the more common native term.
彼はサインランゲージで会話ができる。
He can communicate in sign language.
Variant with interpunct; less common but seen in some contexts.
手話 is the standard Japanese word for sign language; サインランゲージ is a less common loanword alternative.
Loanword from English 'sign language'.