Hun viser sans for humor.

Here sans is used in a fixed expression: å ha/vise sans for .... In this pattern, sans normally appears without an article.

So Norwegian treats it more like a general quality or tendency than like a countable noun. That is why en is not used here.

Sans means something like feeling for, appreciation of, or sense for. It is often used when talking about someone having a natural liking for or understanding of something.

Common examples:

• ha sans for musikk = have a feel/appreciation for music
• ha sans for detaljer = have an eye for details
• ha sans for humor = have a sense of humor

In this sentence, it suggests that she shows an ability to appreciate or express humor.

Because sans normally goes with for in this expression: sans for noe.

So:

• sans for humor
• sans for kunst
• sans for stil

This is something you mainly learn as a set phrase. It is not usually changed to another preposition.

Because humor is being used in a general, abstract sense. Norwegian often leaves out the article with abstract nouns when talking about something in general.

So sans for humor means a sense of humor in general, not one specific humor.

Yes, it is natural, though it may sound a little more formal or written than the very common expression Hun har sans for humor.

• Hun viser sans for humor = She shows/displays a sense of humor
• Hun har sans for humor = She has a sense of humor

The version with har is often more common in everyday speech.

The difference is small, but there is a nuance:

• har sans for humor focuses on what she possesses as a personal trait
• viser sans for humor focuses on how that trait is visible in her behavior

So viser emphasizes that you can see it in action.

Yes. This is standard Norwegian main-clause word order:

• Hun = subject
• viser = verb
• sans for humor = object/complement

So it follows the normal pattern subject + verb + rest.

You could, but it does not mean exactly the same thing.

• Hun viser humor suggests that she shows humor in what she says or does
• Hun viser sans for humor suggests that she shows an appreciation for humor or that she has a sense of humor

The second expression is more idiomatic for describing someone as having a sense of humor.

It is fairly common, especially in expressions like ha sans for or vise sans for, but it is not one of the most basic beginner words. It can sound a bit more refined or literary than simpler alternatives.

Still, you will definitely see it in real Norwegian.

A simple approximate pronunciation is:

Hoon VEE-ser sahns for hyu-MOOR

A few notes:

• Hun has a rounded vowel that does not match English exactly.
• viser has stress on the first syllable: VI-ser
• humor usually has stress on the second syllable: hu-MOR

If you want to sound more natural, listen especially for the Norwegian vowel sounds in hun and humor.

Yes, very often. It is a productive pattern.

Examples:

• Hun har sans for kunst. = She has an appreciation for art.
• Han har sans for stil. = He has a sense of style.
• De viser sans for detaljer. = They show an eye for detail.

So once you learn sans for, you can use it with many abstract nouns.