世界語 せかいご Meanings Noun international language; world language; global lingua franca See also: 国際語 (こくさいご). constructed international auxiliary language (e.g. Esperanto) See also: 国際補助語 (こくさいほじょご). Kanji 世 world. Read as セ. 界 realm. Read as カイ. 語 language. Read as ゴ. Jinuma: Japanese Dictionary · Word lists