Yo (kana)

yo
yo
hiragana;	katakana;
transliteration	yo
hiragana origin	与
katakana origin	與
Man'yōgana	用容欲夜与余四世代吉
spelling kana	吉野のヨ Yoshino no "yo"
unicode	U+3088, U+30E8
braille
	Note: These Man'yōgana originally represented morae with one of two different vowel sounds, which merged in later pronunciation

よ, in hiragana or ヨ in katakana, is one of the Japanese kana, each of which represents one mora. The hiragana is made in two strokes, while the katakana in three. Both represent [jo].

When small and preceded by an -i kana, this kana represents a palatalization of the preceding consonant sound with the [o] vowel (see yōon).^[1]

In mathematics, よ is sometimes used to represent the Yoneda embedding.^[2]

Forms	Rōmaji	Hiragana	Katakana
Normal y- (や行 ya-gyō)	yo	よ	ヨ
Normal y- (や行 ya-gyō)	you yoo yō	よう, よぅよお, よぉよー	ヨウ, ヨゥヨオ, ヨォヨー

^ Jim Gleeson (2013). "Contracted sounds". Japanese Hiragana: An Introductory Japanese Language Workbook. Tuttle Publishing. ISBN 9781462913978.
^ "Yoneda embedding". nLab. Retrieved 6 July 2019.

[1] Jim Gleeson (2013). "Contracted sounds". Japanese Hiragana: An Introductory Japanese Language Workbook. Tuttle Publishing. ISBN 9781462913978.

[2] "Yoneda embedding". nLab. Retrieved 6 July 2019.

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[2]