Runden begynder nu.

Runden is the definite singular form of runde.

• en runde = a round
• runden = the round

In Danish, the definite article is usually added to the end of the noun rather than written as a separate word like English the.

So:

• en kamp = a match
• kampen = the match

That is why Runden begynder nu means The round begins now.

Begynder is the present tense form of the verb at begynde, which means to begin or to start.

Examples:

• at begynde = to begin
• jeg begynder = I begin / I am beginning
• runden begynder = the round begins / the round is beginning

Danish present tense is often formed by adding -r to the infinitive:

• at spille → spiller
• at vente → venter
• at begynde → begynder

Danish verbs do not change according to the subject in the present tense the way English verbs do.

In English:

• I begin
• he begins

In Danish, the verb stays the same:

• jeg begynder
• han begynder
• runden begynder

So begynder works for all persons and numbers in the present tense.

The normal Danish main-clause word order is:

subject + verb + adverb

So:

• Runden = subject
• begynder = verb
• nu = time adverb

That gives:

Runden begynder nu.

This is the most natural neutral order.

You may sometimes see other word orders for emphasis, but for a simple statement, subject + verb + nu is standard.

Nu usually means now.

In this sentence it tells you that the action starts at this moment:

• Runden begynder nu = The round begins now

Depending on context, nu can also sometimes mean something like by now, at this point, or simply add immediacy, but here the meaning is straightforward: now.

Not completely. Danish pronunciation is often less phonetic than English learners expect.

A broad helpful guide is:

• begynder ≈ be-GYN-er

But the real Danish pronunciation is softer and more reduced than that.

A few things to notice:

• gy does not sound like English guy
• the d in -der is often very soft or not clearly pronounced like an English d
• the final -er is usually a weak ending

So it is better to learn the whole word by listening rather than sounding it out letter by letter.

It is capitalized because it is the first word of the sentence, not because it is a noun.

Unlike German, modern Danish does not capitalize all nouns.

So:

• Runden begynder nu.
• Jeg ser runden nu.

In the second sentence, runden is not capitalized because it is not at the beginning.

Yes. Runden starter nu is also natural and means almost the same thing.

There can be a slight nuance:

• begynder = begins
• starter = starts

In many everyday situations, they are interchangeable.

However, begynde is often a bit more general, while starte can sound slightly more like something is being set in motion. In this sentence, both are fine.

The base forms are:

• en runde = a round
• at begynde = to begin

The sentence uses:

• runden = definite singular noun
• begynder = present tense verb

So if you want to look them up in a dictionary, search for runde and begynde.

Yes. Danish present tense often covers both the simple present and what English expresses with is/are + -ing.

So begynder can mean:

• begins
• is beginning

The exact English translation depends on context and style.

That is very common in Danish:

• Han spiser = He eats / He is eating
• Timen starter = The lesson starts / is starting

Yes. Runde is a common gender noun, which is why it takes en in the indefinite singular:

• en runde
• runden

If it were a neuter noun, it would use et and usually -et in the definite singular:

• et hus
• huset

So learning runde together with en is important.

Yes, absolutely.

Nu begynder runden is also correct and natural. It means the same basic thing, but with slightly more focus on now.

When an adverb like nu comes first in a Danish main clause, the verb must still stay in second position:

• Nu = first element
• begynder = second element
• runden = after the verb

This is a key Danish word-order rule often called V2 word order.

So both are correct:

• Runden begynder nu.
• Nu begynder runden.

They just differ a little in emphasis.