Blenderen er åpen.

The ending -en means the.

So:

• blender = blender
• blenderen = the blender

In Norwegian, the definite article is usually attached to the end of the noun instead of being a separate word in front, as in English.

A few similar examples:

• bil = car
• bilen = the car
• hund = dog
• hunden = the dog

So blenderen er åpen literally looks like blender-the is open, but natural English is the blender is open.

Because åpen agrees with the noun it describes.

Here, blenderen is a singular common-gender noun, so the adjective stays in its basic form:

• blenderen er åpen = the blender is open

Compare:

• vinduet er åpent = the window is open
  
  • vinduet is neuter, so the adjective becomes åpent
• dørene er åpne = the doors are open
  
  • plural takes åpne

So the pattern is:

• common gender singular: åpen
• neuter singular: åpent
• plural: åpne

Because this adjective is in the predicate position, not directly in front of the noun.

In blenderen er åpen, the adjective comes after er, so it is a predicate adjective. Predicate adjectives agree mainly with gender and number, not with definiteness in the same way that attributive adjectives do.

Compare:

• Den åpne blenderen = the open blender
  
  • adjective is directly before the noun, so you use åpne
• Blenderen er åpen = the blender is open
  
  • adjective comes after er, so you use åpen

This is a very common difference in Norwegian.

Er means is.

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

So:

• jeg er = I am
• du er = you are
• han/hun er = he/she is
• blenderen er = the blender is

Norwegian does not change the present-tense form for different persons the way English does. It is just er for all of them.

You would usually switch the verb and the subject:

• Blenderen er åpen. = The blender is open.
• Er blenderen åpen? = Is the blender open?

This is a very common pattern in Norwegian:

• Døren er lukket. = The door is closed.
• Er døren lukket? = Is the door closed?

A rough pronunciation is OH-pen, but with a Norwegian å, not a normal English o.

A few tips:

• å is usually pronounced like the vowel in British more or law, though exact pronunciation depends on dialect
• p is clearly pronounced
• the ending -en here is unstressed and lighter than in English

So åpen is roughly:

• AW-pen or OH-pen

Also, the letter å is a separate letter in Norwegian, not just an accented a.

Yes. Blender is used in Norwegian too, especially for the kitchen appliance.

Like many Norwegian nouns borrowed from English, it takes normal Norwegian grammar:

• en blender = a blender
• blenderen = the blender
• blendere = blenders
• blenderne = the blenders

So even though the word looks English, it behaves like a regular Norwegian noun.

Yes, grammatically it is natural.

It simply means that the blender is open. Depending on context, that could mean:

• the lid is off
• the blender is not closed properly
• some opening or compartment is open

In real life, Norwegians might sometimes choose a more specific sentence if needed, such as talking about the lid:

• Lokket på blenderen er av. = The lid of the blender is off.
• Blenderen er ikke lukket. = The blender is not closed.

But Blenderen er åpen is still a correct and understandable sentence.

The dictionary form is en blender.

When learning Norwegian nouns, it is best to learn them with the article:

• en blender

That tells you the noun is common gender, which helps you form other words correctly:

• en blender
• blenderen
• blendere
• blenderne

If you only memorize blender by itself, you miss useful grammar information.

Yes. Åpen can be used both literally and more abstractly.

Literal meanings:

• Døren er åpen. = The door is open.
• Butikken er åpen. = The shop is open.

More abstract meanings:

• Han er åpen om det. = He is open about it.
• Jeg er åpen for forslag. = I’m open to suggestions.

In Blenderen er åpen, the meaning is the literal, physical one.