酸素

さんそ

oxygen

JLPT N3

Character Breakdown

Meaning and Usage

"酸素" (さんそ) means "oxygen," the essential gas for respiration and combustion. It is a scientific term commonly used in everyday conversation, education, and medical contexts.

Common Contexts

You will often hear "酸素" when discussing health, biology, or environments where oxygen levels change, such as high altitudes or medical treatments.

Collocations and Patterns

  • 酸素ボンベ (さんそボンベ): oxygen tank, used in medical or mountain climbing contexts.
  • 酸素吸入 (さんそきゅうにゅう): oxygen inhalation, a medical treatment.
  • 酸素濃度 (さんそこうど): oxygen concentration, used in scientific or environmental discussions.

Usage Notes

When using "酸素," speakers imply the importance of oxygen for life or specific conditions affecting oxygen availability. It is a neutral, formal term suitable for scientific and everyday use.

Common Mistakes

Learners sometimes confuse "酸素" with "酸" (さん, acid) due to similar kanji. Remember "酸素" specifically refers to oxygen gas, not acids.

Example Sentences

さんそはにんげんがいきるためにひつようなきたいです。

Oxygen is a gas necessary for humans to live.

こうざんではさんそがうすくなるので、さんそボンベをつかいます。

At high mountains, oxygen becomes thin, so oxygen tanks are used.

さんそをすうとからだのさいぼうがげんきになります。

When you breathe oxygen, your body’s cells become energized.