Termosflasken står ved campingstolen.

Because termosflasken is the definite form and means the thermos flask.

In Norwegian, many nouns add the definite article to the end of the word instead of using a separate word like the in English.

• en termosflaske = a thermos flask
• termosflasken = the thermos flask

So -en here is the definite ending for a masculine noun.

For the same reason: campingstolen is the definite form and means the camping chair.

• en campingstol = a camping chair
• campingstolen = the camping chair

The ending -en marks definiteness, just like in termosflasken.

Yes. Norwegian very often combines words into a single compound noun.

So:

• termos
  • flaske → termosflaske
• camping
  • stol → campingstol

This is extremely common in Norwegian. Where English often writes two words, Norwegian often prefers one compound word.

In Norwegian, stå is often used more broadly than English stand.

It can describe the position of an object that is upright or simply located somewhere in a natural resting position. So Termosflasken står ved campingstolen means that the thermos flask is standing / is placed / is by the camping chair.

Norwegian often uses position verbs where English might just use is:

• står = stands / is standing / is placed upright
• ligger = lies / is lying
• sitter = sits / is sitting

So this is very normal Norwegian.

You could say Termosflasken er ved campingstolen, and it would be understandable, but står is usually more natural if the object is upright or placed somewhere physically.

Using er only gives location:

• er ved campingstolen = is by the camping chair

Using står gives both location and physical position:

• står ved campingstolen = is standing / placed by the camping chair

Norwegian often prefers this more specific verb.

Here, ved means by, next to, or near.

So ved campingstolen means the thermos flask is located close to the camping chair.

A few rough comparisons:

• ved = by / near
• på = on
• i = in
• under = under

The exact English translation of ved can vary a little depending on context, but by is a very good match here.

This is the normal basic Norwegian sentence pattern:

subject + verb + adverbial/prepositional phrase

So:

• Termosflasken = subject
• står = verb
• ved campingstolen = location phrase

This is very similar to English word order:

• The thermos flask
  • stands/is
    • by the camping chair

It would be:

En termosflaske står ved en campingstol.

That means A thermos flask is standing by a camping chair.

Compare:

• En termosflaske står ved en campingstol = indefinite
• Termosflasken står ved campingstolen = definite

So the sentence you were given refers to specific, known objects: the thermos flask and the camping chair.

Yes, campingstol is normally a masculine noun, so in the singular it takes:

• en campingstol = indefinite singular
• campingstolen = definite singular

Likewise:

• en termosflaske
• termosflasken

For many learners, the main thing to remember is that masculine nouns commonly use -en in the definite singular.

Står is the present tense of stå.

• infinitive: stå = to stand
• present tense: står = stands / is standing

The letter å is a separate vowel in Norwegian, not just an accented a. It has a different sound from plain a.

So:

• stå = to stand
• står = stands

The -r is the normal present-tense ending for many Norwegian verbs.

Yes. Depending on context, natural English translations could include:

• The thermos flask is by the camping chair.
• The thermos flask is standing by the camping chair.
• The thermos flask is next to the camping chair.

The Norwegian sentence is slightly more specific than plain is, because står suggests an upright or placed position. But in normal English, people often just say is by or is next to.