Bien lager honning.

The basic noun is bie, meaning bee.
Bien is the definite singular form, meaning the bee.

So:

• en bie = a bee
• bien = the bee

In Norwegian, the idea of the is often added to the end of the noun instead of being a separate word.

Because Norwegian usually attaches the definite article to the noun itself.

So English:

• the bee

becomes Norwegian:

• bien

That -en ending is doing the job of the.

A separate word like den is usually added when there is an adjective or extra emphasis, for example:

• den lille bien = the small bee

Lager is the present tense of å lage.

Here, å lage means to make or to produce.
So Bien lager honning means The bee makes honey or The bee produces honey.

A useful thing to know: Norwegian verbs do not change for person the way English verbs sometimes do.

• jeg lager = I make
• du lager = you make
• bien lager = the bee makes

The verb form stays the same.

Because honning is being used as a mass noun, like English honey.

In both languages, mass nouns often appear with no article when talking about the substance in general:

• lager honning = makes honey

If you wanted to say the honey, Norwegian would use the definite form:

• honningen = the honey

Yes, in this simple sentence it is.

The pattern is:

• Bien = subject
• lager = verb
• honning = object

So it follows subject–verb–object, just like English:

• The bee makes honey

But Norwegian also has the V2 rule, which means the verb must be in the second position in main clauses. For example:

• I naturen lager bien honning. = In nature, the bee makes honey.

Here, lager still stays in second position.

Yes, in many cases you can.

Bie is a noun that can often be treated as either:

• common gender: en bie / bien
• feminine: ei bie / bia

So both of these can be acceptable in Bokmål:

• Bien lager honning
• Bia lager honning

The sentence you were given uses the common-gender definite form bien.

A simple English-friendly approximation is:

BEE-en LAH-ger HONN-ing

A few details:

• Bien is usually two syllables: bi-en
• lager has a hard g, like in go
• honning has a short vowel and a clear nn

So you can think of it roughly as:

BEE-en LAH-ger HONN-ing

Literally, bien means the bee, so it can refer to a specific bee.

But in simple teaching sentences, it may also be used more generally to show how the grammar works.

If you want a clearly general meaning like bees make honey, Norwegian often uses the plural:

• Bier lager honning = Bees make honey

So Bien lager honning is grammatically fine, but the exact meaning depends on context.