Dette er viktig for samfunnet.

Dette means this.

It is a demonstrative pronoun, used to point to something specific, such as an idea, situation, or object.

Compare:

• Dette er viktig. = This is important.
• Det er viktig. = It is important / sometimes That is important, depending on context

A simple way to think about it:

• dette = this
• det = often it or that

In everyday speech, Norwegian can also use det her for this, but dette is very common in writing and careful speech.

Er is the present tense of å være, which means to be.

So:

• å være = to be
• er = am / is / are

In this sentence, Dette er viktig for samfunnet, er simply means is.

Yes, this sentence follows the basic Norwegian word order and is very close to English:

• Dette = subject
• er = verb
• viktig = adjective/complement
• for samfunnet = prepositional phrase

So the structure is basically:

Subject + verb + complement

That makes this sentence very straightforward for an English speaker.

Viktig means important.

Here it comes after er, so it is a predicative adjective.

A learner may expect a different ending, but viktig is normal here. In fact, adjectives ending in -ig often keep the same form in singular contexts:

• en viktig sak = an important matter
• et viktig spørsmål = an important question
• Dette er viktig = this is important

So viktig is simply the correct form here.

For here means for in the sense of important for or beneficial/relevant to.

So:

• viktig for samfunnet = important for society

This is the normal preposition used with viktig when you say who or what something matters to.

Examples:

• viktig for meg = important for me
• viktig for barna = important for the children
• viktig for samfunnet = important for society

Because samfunnet is the definite singular form of samfunn.

The noun forms are:

• et samfunn = a society
• samfunnet = the society

In this sentence, Norwegian uses samfunnet, even though English often just says society without the.

So literally, it looks like:

• for the society

But natural English is usually:

• for society

This is a very common difference between Norwegian and English.

Samfunn is a neuter noun.

That means its indefinite article is et:

• et samfunn = a society

And its definite singular ending is -et:

• samfunnet = the society

This is useful to remember because many Norwegian nouns change form depending on definiteness.

It can mean both, depending on context.

Most commonly, samfunnet means:

• society
• the community
• sometimes the wider public/social system

So in a sentence like this, Dette er viktig for samfunnet, the idea is usually that something is important not just for one person, but for people collectively.

Not in this sentence by itself.

Dette can stand alone as this.

But denne is normally used before a common-gender singular noun:

• denne boka = this book
• denne bilen = this car

By contrast:

• dette can stand alone: Dette er viktig
• dette is also used with neuter nouns: dette huset = this house

So Dette er viktig is correct, while Denne er viktig would only work if you were referring back to a specific common-gender noun.

A rough English-friendly guide is:

sam-fun-net

A few helpful notes:

• the a in sam- is short
• the double nn helps make the vowel before it short
• the final -et is often pronounced quite lightly in normal speech

A more natural overall rhythm for the whole sentence is something like:

DET-te er VIK-tih for SAM-fun-net

The exact sounds are not identical to English, but that approximation is good enough to get started.

Yes, very natural.

It sounds like standard written and spoken Norwegian and could be used in many contexts, especially when talking about politics, education, health, the environment, technology, or public policy.

For example:

• Dette er viktig for samfunnet.
• Dette er viktig for barna.
• Dette er viktig for framtiden.

So it is a very useful pattern to learn.