Is health a noun or an adjective?

Health is a noun, meaning "health". Healthy is a synonym adjective, which comes from the noun health with the suffix -y?

Does health mean "health"? The synonym of "strong" is fit, which is equivalent to well or strong. Its antonym is unhealthy or weak. For example:

He is in poor health.

Is he in poor health?

A toast to your health!

I wish you the best of health! —

How have you been recently?

How have you been recently?

Oh, I'm healthy.

Oh, I'm fine?

As he has just been discharged from the hospital, his health is still not good. Because he has just been discharged from hospital, he is still very unhealthy. He is still weak because he has just been discharged from the hospital. )

Because I just got out of the hospital, I am still quite weak.

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