ー

See also: 一

ー U+30FC, ー
KATAKANA-HIRAGANA PROLONGED SOUND MARK
← ・
[U+30FB] 		Katakana ヽ →
[U+30FD]
ｰ U+FF70, ｰ
HALFWIDTH KATAKANA-HIRAGANA PROLONGED SOUND MARK
← ｯ
[U+FF6F] 		Halfwidth and Fullwidth Forms ｱ →
[U+FF71]

Japanese

Alternative forms

Glyph origin

Said to be from the right side of 引.

Combining form

ー 

  1. The long-vowel mark, which marks a long vowel in katakana (and less commonly in hiragana) when placed after a syllable.

Usage notes

  • This mark appears as a horizontal line in horizontal writing (横書き) and as a vertical line in vertical writing (縦書き).
    • For example, タクシー (takushī, “taxi”) is written vertically as:
      タクシー
  • The names for the symbol are 長音符 (chōonpu, literally “long sound mark”), 音引き (onbiki, literally “sound lengthener”) or 棒引き (bōbiki, literally “stick lengthener”).

Further reading

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