Barnet ser demonen.

Barnet is the definite singular form of barn.

• et barn = a child
• barnet = the child

Norwegian usually puts the definite article at the end of the noun as a suffix, instead of using a separate word like English the.

For the same reason: demonen is the definite singular form.

• en demon = a demon
• demonen = the demon

So both nouns in the sentence are definite: the child and the demon.

In Norwegian, the is often built into the noun itself.

Instead of saying something like English the child, Norwegian says barnet, where -et marks definiteness. Likewise, demonen has -en added to show the demon.

This is one of the biggest differences from English noun structure.

The ending depends on the noun’s gender.

• barn is a neuter noun, so its definite singular form is barnet
• demon is usually treated as a masculine/common-gender noun, so its definite singular form is demonen

Very roughly:

• neuter noun: et barn → barnet
• masculine/common noun: en demon → demonen

No. Barn simply means child, without specifying gender.

So barnet means the child, and it could refer to either a boy or a girl.

Ser is the present tense of the verb å se (to see).

Examples:

• jeg ser = I see
• du ser = you see
• barnet ser = the child sees

A useful thing for English speakers: Norwegian verbs do not usually change form depending on the subject. So ser stays ser with I, you, he/she, we, and so on.

This sentence has the basic normal word order:

subject + verb + object

• Barnet = subject
• ser = verb
• demonen = object

So it works very much like English The child sees the demon.

Yes, exactly.

• Et barn ser en demon = A child sees a demon
• Barnet ser demonen = The child sees the demon

That is a very useful comparison, because it shows both indefinite and definite noun forms clearly.

A rough English-friendly guide would be:

BAR-neht sehr deh-MO-nen

A few notes:

• r in Norwegian is usually clearer than in most English accents
• e is often pronounced more cleanly than English ee
• the final t in barnet may be soft or lightly pronounced, depending on accent and speaking style

Exact pronunciation varies by region, but that rough version is a good starting point.

This sentence is standard Bokmål.

In Nynorsk, you would more naturally expect: Barnet ser demonen or possibly another wording depending on style, but the sentence as given looks completely normal in Bokmål.

For a learner, it is best to treat this as a straightforward Bokmål example.

Usually å se means to see, either literally or sometimes more generally, like to understand in certain contexts.

In this sentence, though, the most natural reading is the literal one: the child sees the demon.

So unless context suggests otherwise, you should interpret it as ordinary visual seeing.