Ro (kana)

"ロ" redirects here. Not to be confused with 口 or 囗.

For other uses, see Ro (disambiguation).

ろ, in hiragana, or ロ in katakana, (romanised as ro) is one of the Japanese kana, each of which represents one mora. The hiragana is written in one stroke, katakana in three. Both represent [ɾo] ^ⓘ and both originate from the Chinese character 呂. The Ainu language uses a small ㇿ to represent a final r sound after an o sound (オㇿ or). The combination of an R-column kana letter with handakuten ゜ – ろ゚ in hiragana and ロ゚ in katakana – was introduced to represent [lo] in the early 20th century.^{[according to whom?]}

Form	Rōmaji	Hiragana	Katakana
Normal r- (ら行 ra-gyō)	ro	ろ	ロ
	rou roo rō	ろう, ろぅ ろお, ろぉ ろー	ロウ, ロゥ ロオ, ロォ ロー

ro
hiragana katakana
transliteration	ro
hiragana origin	呂
katakana origin	呂
Man'yōgana	路 漏 呂 侶
spelling kana	ローマのロ Rōma no "ro"
unicode	U+308D, U+30ED
braille
Note: These Man'yōgana originally represented morae with one of two different vowel sounds, which merged in later pronunciation

Stroke order

Stroke order in writing ろ

Stroke order in writing ロ

Stroke order in writing ろ

Stroke order in writing 口

Other communicative representations

Japanese radiotelephony alphabet	Wabun code
口ーマの口 Rōma no "Ro"	▄ ▄▄▄ ▄ ▄▄▄ ⓘ

Japanese Navy Signal Flag	Japanese semaphore	Japanese manual syllabary (fingerspelling)	Braille dots-245 Japanese Braille

• Full Braille representation

ろ / 口 in Japanese Braille
ろ / 口 ro	ろう / 口ー rō	Other kana based on Braille ろ
		りょ / リョ ryo	りょう / リョー ryō

• Computer encodings

Character information

Preview	ろ		口		ﾛ		ㇿ		㋺
Unicode name	HIRAGANA LETTER RO		KATAKANA LETTER RO		HALFWIDTH KATAKANA LETTER RO		KATAKANA LETTER SMALL RO		CIRCLED KATAKANA RO
Encodings	decimal	hex	dec	hex	dec	hex	dec	hex	dec	hex
Unicode	12429	U+308D	21475	U+53E3	65435	U+FF9B	12799	U+31FF	13050	U+32FA
UTF-8	227 130 141	E3 82 8D	229 143 163	E5 8F A3	239 190 155	EF BE 9B	227 135 191	E3 87 BF	227 139 186	E3 8B BA
Numeric character reference	ろ	ろ	口	口	ﾛ	ﾛ	ㇿ	ㇿ	㋺	㋺
Shift JIS (plain)[1]	130 235	82 EB	131 141	83 8D	219	DB
Shift JIS-2004[2]	130 235	82 EB	131 141	83 8D	219	DB	131 252	83 FC
EUC-JP (plain)[3]	164 237	A4 ED	165 237	A5 ED	142 219	8E DB
EUC-JIS-2004[4]	164 237	A4 ED	165 237	A5 ED	142 219	8E DB	166 254	A6 FE
GB 18030[5]	164 237	A4 ED	165 237	A5 ED	132 49 155 53	84 31 9B 35	129 57 189 57	81 39 BD 39
EUC-KR[6] / UHC[7]	170 237	AA ED	171 237	AB ED
Big5 (non-ETEN kana)[8]	198 241	C6 F1	199 167	C7 A7
Big5 (ETEN / HKSCS)[9]	199 116	C7 74	199 233	C7 E9

See also

• Japanese phonology

References

1. Unicode Consortium (2015-12-02) [1994-03-08]. "Shift-JIS to Unicode".
2. Project X0213 (2009-05-03). "Shift_JIS-2004 (JIS X 0213:2004 Appendix 1) vs Unicode mapping table".{{cite web}}: CS1 maint: numeric names: authors list (link)
3. Unicode Consortium; IBM. "EUC-JP-2007". International Components for Unicode.
4. Project X0213 (2009-05-03). "EUC-JIS-2004 (JIS X 0213:2004 Appendix 3) vs Unicode mapping table".{{cite web}}: CS1 maint: numeric names: authors list (link)
5. Standardization Administration of China (SAC) (2005-11-18). GB 18030-2005: Information Technology—Chinese coded character set.
6. Unicode Consortium; IBM. "IBM-970". International Components for Unicode.
7. Steele, Shawn (2000). "cp949 to Unicode table". Microsoft / Unicode Consortium.
8. Unicode Consortium (2015-12-02) [1994-02-11]. "BIG5 to Unicode table (complete)".
9. van Kesteren, Anne. "big5". Encoding Standard. WHATWG.