(in Japanese). {{cite journal}}: Cite journal requires |journal= (help) "小學堂中古音". xiaoxue.iis.sinica.edu.tw. Retrieved 2022-05-15. Katsuki-Pestemer,...

use: as a particle. This is normally written in hiragana (を), so katakana ヲ sees only limited use. See Gojūon and the articles on each character for details...