Hver vara er einstök.

Yes — hver can mean different things depending on context.

In Hver vara er einstök, hver means each or every.

That is different from question uses such as:

• Hver er þetta? = Who is this?
• Hvaða vara? = Which product? (more specifically which)

So in this sentence, hver + singular noun gives the sense of each/every.

Yes, it works very similarly.

After hver meaning each/every, Icelandic normally uses a singular noun:

• hver vara = each product / every product

So even though the sentence talks about products in general, the noun stays singular because the idea is each individual item.

Vara is in the nominative singular.

That is because it is the subject of the sentence:

• Hver vara = the subject
• er = is
• einstök = adjective describing the subject

So the basic structure is:

• [subject in nominative] + [verb] + [predicate adjective]

Since vara is a feminine noun, the adjective also has to match it.

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

The noun vara is:

• feminine
• singular
• nominative

So the adjective must also be:

• feminine
• singular
• nominative

That gives:

• masculine: einstakur
• feminine: einstök
• neuter: einstakt

So:

• Hver vara er einstök. = correct, because vara is feminine.

Yes. It is a normal adjective.

In this sentence, einstök is a predicate adjective. That means it comes after the verb vera (to be) and describes the subject.

Compare:

• einstök vara = a unique product
  
  • adjective directly before the noun
• Varan er einstök = The product is unique
  
  • adjective after er

In both cases, einstök is still an adjective.

Er is the present tense, 3rd person singular form of vera (to be).

Since the subject is singular — hver vara — the verb is singular too:

• ég er = I am
• þú ert = you are
• hann/hún/það er = he/she/it is

So:

• Hver vara er einstök. = Each product is unique.

Icelandic does not have a separate indefinite article like English a/an.

So Icelandic often just uses the bare noun:

• vara = product / a product

For the, Icelandic usually adds a suffixed article to the noun:

• vara = product
• varan = the product

In this sentence, no article is needed because hver vara already means each/every product.

Yes, you could.

Sérhver vara er einstök also means every product is unique, but it sounds a bit more formal or emphatic than plain hver vara.

So:

• Hver vara er einstök. = natural, straightforward
• Sérhver vara er einstök. = more formal, more like each and every product

The word order is very straightforward:

• Hver vara = subject
• er = verb
• einstök = complement/predicate adjective

So the pattern is:

• Subject + Verb + Adjective

That is the normal order for a simple statement like this.

A rough English-friendly guide would be something like:

• Hver ≈ kver or hwer
• vara ≈ VA-ra
• er ≈ short er
• einstök ≈ AYN-sterk or EYN-stuhk (roughly)

A few useful notes:

• hv in modern Icelandic is often pronounced close to kv
• r is rolled or tapped
• ö is not the same as English o; it is more like the vowel in some pronunciations of bird or German ö

The main stress in Icelandic usually falls on the first syllable of each word:

• HVER
• VA-ra
• ER
• EIN-stök

Yes. It often means unique, but it can also carry the sense of individual, distinct, or one of a kind, depending on context.

In a sentence like this, it usually means:

• Each product is unique
• or Every product is distinct

So it is a very natural word for describing something as not exactly the same as others.