Diversity in CLIL in Plurilingual Communities of Practice CLILの多様性と複言語コミュニティー On January 26, 2019, the above symposium took place at Sophia University. Celebrating the presence of honorable speakers, Professors Henry Widdowson and Barbara Seidlhoffer of the University of Vienna, Professor Kumiko Murata of Waseda University, Professors Kensaku Yoshida and Makoto Ikeda of Sophia University, 226 researchers and teachers attended the event.