Endurnýjunin er möguleg.

The -in is the definite article, attached to the end of the noun. Icelandic usually says the as a suffix rather than as a separate word.

• endurnýjun = renewal
• endurnýjunin = the renewal

So this is one of the first big differences from English: Icelandic often puts the onto the noun itself.

The dictionary form is endurnýjun.

That is the indefinite singular form, the form you would normally look up in a dictionary. In this sentence, it appears as endurnýjunin, which is the definite singular nominative form.

Because Icelandic usually expresses definiteness by adding the article to the noun.

So instead of something like English the renewal, Icelandic says:

• endurnýjunin

This is very common in Icelandic. A separate article is generally not used the way English uses the.

Because adjectives in Icelandic must agree with the noun they describe in gender, number, and usually case.

The noun endurnýjun(in) is feminine singular, so the adjective also has to be in the feminine singular nominative form:

• masculine: mögulegur
• feminine: möguleg
• neuter: mögulegt

So:

• Endurnýjunin er möguleg.

uses the feminine form because endurnýjunin is feminine.

Er is the 3rd person singular present tense of vera, which means to be.

So here it means is.

Some useful related forms are:

• ég er = I am
• þú ert = you are
• hann / hún / það er = he / she / it is
• við erum = we are
• þið eruð = you are
• þeir / þær / þau eru = they are

Because endurnýjunin is singular, the verb is er.

It is in the nominative case because it is the subject of the sentence.

The sentence structure is:

• Endurnýjunin = subject
• er = verb
• möguleg = predicate adjective

After vera (to be), the adjective usually matches the subject, so möguleg is also nominative feminine singular.

Yes, it can be, but the meaning changes slightly.

• Endurnýjunin er möguleg. = The renewal is possible.
• Endurnýjun er möguleg. = Renewal is possible or A renewal is possible, depending on context.

So the version with -in is definite, while the version without it is indefinite or more general.

No, this is a very standard Icelandic statement pattern:

• subject + verb + adjective

So:

• Endurnýjunin = subject
• er = verb
• möguleg = adjective

If you wanted to turn it into a yes/no question, Icelandic would usually put the verb first:

• Er endurnýjunin möguleg? = Is the renewal possible?

A rough English-friendly guide is:

• Endurnýjunin ≈ EN-dur-ny-yu-nin
• er ≈ ehr
• möguleg ≈ MER-gu-leg or MUH-gu-leg depending on how fine the approximation is

A few pronunciation points:

• Icelandic stress is usually on the first syllable.
• ý is a front rounded vowel, so there is no perfect English equivalent.
• ö also does not have an exact English equivalent.
• The g in Icelandic can sound softer than English g, especially in some positions.

So the most important beginner-level thing is:

• stress the first syllable of each word
• do not try to force fully English vowel sounds if you can avoid it

It can often mean both possible and feasible, depending on context.

So in real usage, möguleg may imply:

• theoretically possible
• practically possible
• feasible

The exact nuance depends on what kind of renewal is being discussed. In many everyday situations, English might translate it as either possible or feasible.

Yes, endurnýjun is feminine.

One clue is the adjective form used with it:

• möguleg = feminine

Also, many nouns ending in -un are feminine in Icelandic, although you should still learn each noun with its gender when possible.

A good habit is to memorize nouns together with gender information, for example:

• endurnýjun — feminine noun

That makes adjective agreement much easier later.

It can be used in many contexts. Endurnýjun can refer to different kinds of renewal depending on context, such as:

• renewal of a subscription
• renewal of a contract
• renewal of a license
• renewal in a broader abstract sense

So the sentence itself is grammatically simple, but the exact real-world meaning depends on what is being renewed.

This sentence is especially useful for noticing three core Icelandic features:

1. The definite article is attached to the noun

   • endurnýjun → endurnýjunin

2. Adjectives agree with nouns

   • möguleg matches a feminine singular noun

3. The verb changes with number/person

   • er is singular present of vera

So even though the sentence is short, it teaches a lot of important Icelandic grammar at once.