A (kana)

The katakana ア derives, via man'yōgana, from the left element of kanji 阿. The hiragana あ derives from cursive simplification of the kanji 安.

Scaled-down versions of the kana (ぁ, ァ) are used to express sounds foreign to the Japanese language, such as ファ (fa). In some Okinawan writing systems, a small ぁ is also combined with the kana く (ku) and ふ (fu or hu) to form the digraphs くぁ (kwa) and ふぁ (hwa), although others use a small ゎ instead. In hentaigana, a variant of あ is appeared with a stroke written exactly as wakanmuri. The version of the kana with dakuten (あ゙, ア゙) are used to represent either a gurgling sound, a voiced pharyngeal fricative (/ʕ/), or other similarly articulated sound.

The hiragana あ is made with three strokes:

1. At the top, a horizontal stroke from left to right.
2. A downward vertical stroke starting above and in the center of the last stroke.
3. At the bottom, a loop like the hiragana の.

The katakana ア is made with two strokes:

1. At the top, a stroke consisting of a horizontal line and a short horizontal line proceeding downward and to the left.
2. Starting at the end of the last stroke, a curved line proceeding downward and to the left.

• Full braille representation

* When lengthening "-a" morae in Japanese braille, a chōon is always used, as in standard katakana usage instead of adding an あ / ア.

• Computer encodings