This kana represents the sound 『ヲ』 (wo) and is used in katakana for writing loanwords, foreign names, and onomatopoeia. It is rarely used in modern Japanese, as its hiragana counterpart 『を』 is primarily used as a grammatical particle to mark the direct object of a verb. In katakana, it appears in some words but is not common. For example: 『ヲタクを しる』 (wotaku o shiru, 'to know an otaku').