See also: 一 [U+4E00 CJK UNIFIED IDEOGRAPH-4E00], 
‐ [U+2010 HYPHEN], 
– [U+2013 EN DASH], 
- [U+002D HYPHEN-MINUS], 
− [U+2212 MINUS SIGN], 
— [U+2014 EM DASH], 
ー [U+30FC KATAKANA-HIRAGANA PROLONGED SOUND MARK], and 丨 [U+4E28 CJK UNIFIED IDEOGRAPH-4E28]
 
 
Translingual
| Stroke order | 
|---|
|   | 
Letter
ㄧ 
-  A letter of the Zhuyin alphabet.
Usage notes
Traditionally, this character resembles | in vertical text and 一 in horizontal text, but in modern times 一 is commonly used in both layouts.[1]
References
- 
↑  Unicode Consortium, "Errata Fixed in Unicode 8.0.0"
 
Mandarin
Pronunciation
-  (phoneme) IPA(key): /i/
-  (name) IPA(key): /i˥˥/
Letter
ㄧ
-  The 35th letter of the Zhuyin alphabet. It is preceded by the letter ㄦ and followed by the letter ㄨ.