Innflytelsen er stor.

Because Norwegian often adds the definite article as an ending on the noun instead of using a separate word like English the.

• innflytelse = influence / an influence
• innflytelsen = the influence

The ending -en shows that this is a definite singular noun.

So Innflytelsen er stor literally matches The influence is great/large.

Innflytelse is a masculine noun in standard Bokmål usage.

That matters because:

• its definite singular form is innflytelsen
• the adjective after er stays in the common singular form stor

A quick pattern:

• masculine: en bil – bilen er stor
• feminine: ei bok – boka er stor
• neuter: et hus – huset er stort

Since innflytelse is not neuter, you use stor, not stort.

Because the adjective agrees with the noun.

Here, the subject is innflytelsen, which is singular and not neuter, so the adjective form is stor.

Compare:

• Innflytelsen er stor = singular masculine/feminine
• Huset er stort = singular neuter
• Problemene er store = plural

So stort would only be used with a neuter singular noun.

This is the normal Norwegian word order for a simple statement:

subject + verb + adjective/complement

So:

• Innflytelsen = subject
• er = verb
• stor = predicative adjective

It works very much like English The influence is great.

If you change the word order, it usually has to be for a special reason, such as a question or emphasis:

• Er innflytelsen stor? = Is the influence great?

Yes, stor is often used more broadly than just physical size.

With abstract nouns like innflytelse, stor usually means:

• great
• strong
• considerable
• significant

So in this sentence, stor does not mean physically big. It describes the degree or extent of the influence.

Yes. Adverbs can be placed before the adjective to modify it.

Examples:

• Innflytelsen er veldig stor = The influence is very great
• Innflytelsen er ganske stor = The influence is quite great
• Innflytelsen er for stor = The influence is too great
• Innflytelsen er stor nok = The influence is great enough

So the basic pattern is: subject + er + adverb + adjective or, with nok, often: subject + er + adjective + nok

Innflytelse is the standard word for influence, especially in a general or social sense.

A few related words:

• påvirkning = influence / effect / impact, often more like direct influence or effect
• makt = power
• autoritet = authority

So innflytelse is a very natural choice when talking about someone’s influence over people, decisions, or events.

A useful learner-friendly approximation is:

INN-fly-tehl-sen

A few pronunciation notes:

• nn is a clear n sound
• y in fly is not the English y sound; it is a rounded vowel that many English speakers find tricky
• the e in -elsen is usually unstressed
• the final -en is pronounced lightly

The exact pronunciation varies a bit by dialect, but the important thing is recognizing the word shape and stress pattern.

Usually no, not in normal Norwegian.

For a natural sentence, you would normally need either:

• a definite noun: Innflytelsen er stor
• or an indefinite noun with an article: En innflytelse er stor — but this sounds unusual in most contexts

With abstract nouns like innflytelse, Norwegian often prefers the definite form when talking about a specific influence already understood from context.

So Innflytelse er stor is generally not idiomatic as a full sentence.

Yes, Innflytelsen er stor is standard Bokmål.

In Nynorsk, you would more typically see:

• Påverknaden er stor

That said, learners of Norwegian usually start with Bokmål, and this sentence is completely normal there.