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酸

酸·acid, sour

On-yomi
サン
Kun-yomi
す(い)

By Nihongo PathUpdated

Stroke order

Write it in this order; the numbers mark where each stroke starts.

14 strokes, numbered in writing order. Data: KanjiVG (CC BY-SA 3.0).

Common words

WordReadingMeaning
酸素さんそoxygen
酸っぱいすっぱいsour
酸性さんせいacidity, acidic
炭酸たんさんcarbonation, carbonic acid

Example sentences

  1. このみかんは少し酸っぱい。

    このみかんはすこしすっぱい。

    This mandarin is a little sour.

  2. 高い山では酸素が薄くなる。

    たかいやまではさんそがうすくなる。

    Oxygen gets thin high in the mountains.

  3. 炭酸の入った飲み物が飲みたい。

    たんさんのはいったのみものがのみたい。

    I want something carbonated to drink.

Similar-looking kanji

Do not confuse these on the exam.

Common mistakes

  • Reading 酸素 as さんぞ — it is さんそ
  • Reading 酸っぱい as さんっぱい — the kun form is すっぱい

Memory aid

Picture it

The sake-jar radical 酉 on the left: wine left too long turns sour — the jar gives you both acid and sourness.

Vocabulary using this kanji

Quick check

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What does the kanji 酸 mean?