Jeg varmer suppen i mikrobølgeovnen, før vi spiser aftensmad.

Because suppen means the soup.

In Danish, the definite article is often added to the end of the noun instead of using a separate word like English the.

• en suppe = a soup
• suppen = the soup

So Jeg varmer suppen means I’m heating the soup.

Danish often combines nouns into one compound word.

Here:

• mikrobølge = microwave
• ovn = oven
• mikrobølgeovn = microwave oven
• mikrobølgeovnen = the microwave oven

So this is very normal in Danish. English often writes similar ideas as separate words, but Danish usually joins them into one word.

That -en is the definite ending, meaning the.

• en mikrobølgeovn = a microwave oven
• mikrobølgeovnen = the microwave oven

So just like suppe → suppen, you also get mikrobølgeovn → mikrobølgeovnen.

Because Danish usually uses the simple present where English often uses the present continuous.

• Jeg varmer suppen can mean I heat the soup, I am heating the soup, or sometimes even I’ll heat the soup, depending on context.

Danish does not normally use a direct equivalent of English I am heating in everyday speech. The simple present tense is enough here.

Varmer is the present tense of at varme = to heat / to warm.

Examples:

• at varme = to heat
• jeg varmer = I heat / I am heating
• du varmer = you heat / are heating
• vi varmer = we heat / are heating

In the present tense, Danish verbs do not change much for different people, unlike English.

Because i means in, and here the soup is being heated in the microwave.

• i mikrobølgeovnen = in the microwave
• på mikrobølgeovnen would mean something more like on the microwave, physically on top of it

So i is the natural choice.

In standard Danish spelling, a comma is usually written before a subordinate clause, and før vi spiser aftensmad is a subordinate clause.

So:

• Jeg varmer suppen i mikrobølgeovnen, før vi spiser aftensmad.

That comma is normal and expected in written Danish.

Because after før, you have a subordinate clause, and Danish subordinate clauses usually keep the normal subject + verb order:

• før vi spiser aftensmad = before we eat dinner

If you said før spiser vi aftensmad, that would sound like main-clause word order and would not be correct here.

This is an important difference in Danish:

• main clause: often verb in second position
• subordinate clause: subject usually comes before the verb

Because names of meals are often used without an article in Danish, just as in English.

• vi spiser aftensmad = we eat dinner
• vi spiser morgenmad = we eat breakfast
• vi spiser frokost = we eat lunch

If you used the definite form, it would sound more specific, like referring to a particular dinner already understood from context.

Aftensmad literally means something like evening food, and in everyday English it is usually translated as dinner or evening meal.

A few notes:

• In many contexts, aftensmad = dinner
• Depending on region or family habits, some people may use other words such as middag
• aftensmad is a very common, neutral word

So for most learners, dinner / evening meal is the safest meaning.

Yes, you could, but it sounds a bit more formal or deliberate.

• Jeg varmer suppen = the most natural everyday way to say I’m heating the soup
• Jeg opvarmer suppen = I’m reheating / heating up the soup, a bit more formal or technical

In normal conversation, varmer is usually the better choice.

Here før means before.

• før vi spiser aftensmad = before we eat dinner

Yes, før can also appear in expressions related to ago or earlier, depending on context, but in this sentence it clearly means before.

Examples:

• før nu = before now
• for to år siden = two years ago

Notice that ago is often expressed differently in Danish, so you should not assume før always translates directly as ago.

Then the word order in the main clause changes because Danish uses verb-second order in main clauses.

You would get:

Før vi spiser aftensmad, varmer jeg suppen i mikrobølgeovnen.

Notice the difference:

• Jeg varmer suppen i mikrobølgeovnen, før vi spiser aftensmad.
• Før vi spiser aftensmad, varmer jeg suppen i mikrobølgeovnen.

In the second version, varmer comes before jeg in the main clause because something else has been moved to the front.

In natural speech, the main stress usually falls on the most important content words, not on every word equally.

A likely stress pattern would be something like:

Jeg VARmer SUPpen i mikroBØLGeovnen, før vi SPIser AFTensmad.

Usually:

• function words like jeg, i, vi, før are less stressed
• content words like varmer, suppen, mikrobølgeovnen, spiser, aftensmad carry more stress

The exact stress can change depending on what the speaker wants to emphasize.