タイトル別名 The Change in the Meaning of Ryookai:Based on the Analysis of Taiyo Corpus カンゴ 「 リョウカイ 」 ノ イミ ヘンカ : タイヨウ コーパス ノ ブンセキ オ チュウシン ニ In current Japanese Ryookai indicates “consent, agreement (to an offer, proposal).” However,in the Meiji and Taisho Era (1868- 1926), Ryookai meant “understanding.” This paper will discuss the shift in the meaning of Ryookai (from “A”: “understanding” to “B” :“conse