しご 死語 LinksSentence search for 死語Sentence search for しごKanji details for 死 and 語Edit in JMdict Noun1. dead language; extinct languageAntonym: 活語しかし、そのいっぽう一方、ラテンごラテン語はそのときまでに「しご死語」となっていた。But, then again, Latin was already a "dead language" by that time.Noun2. obsolete word; dated word; word that has become passéSee also 廃語それってしご死語じゃないの。People don't say that anymore. Discussions Log in to talk about this word.