gensen wa atsui.

The hot-spring source is hot.

Breakdown of gensen wa atsui.

• は: topic particle
• 熱あつい: hot
• 源泉げんせん: a hot-spring source

Questions & Answers about gensen wa atsui.

How do you read 源泉 は 熱い?

It is read:

げんせん は あつい。
Romanization: gensen wa atsui.

A small but important point: the particle は is written ha but pronounced wa when it marks the topic.

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What does 源泉 mean here?

Here, 源泉 means the source of a hot spring or the spring source.

In other contexts, 源泉 can also mean a more abstract source or origin, such as the source of funds or the source of energy. But with 熱い, the physical meaning is the natural one: the spring source is hot.

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Why is は used in this sentence?

は marks the topic of the sentence.

So 源泉は熱い means something like:

• As for the spring source, it is hot.
• The spring source is hot.

Japanese often works with a topic-comment structure:

• 源泉は = as for the spring source
• 熱い = is hot

This does not always match English word-for-word, but that is the basic grammar pattern.

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