Tärningen visar sex.

Because tärningen is the definite singular form: the die.

• en tärning = a die
• tärningen = the die

Swedish usually adds definiteness as an ending on the noun:

• en bil = a car
• bilen = the car

So here, -en on tärning makes it definite.

Tärning is singular: die.

Forms:

• en tärning = a die
• tärningen = the die
• tärningar = dice / dice (plural)
• tärningarna = the dice

English often uses dice informally for both singular and plural, but Swedish keeps them clearly separate.

In Swedish, the definite article is usually attached to the end of the noun.

So instead of:

• English: the die

you often get:

• Swedish: tärning-en

This is one of the most important differences between English and Swedish nouns.

A separate definite word can also appear in some cases, especially with adjectives:

• den röda tärningen = the red die

But without an adjective, tärningen by itself is enough.

Visar is the present tense of visa.

• visa = to show
• visar = shows / is showing

In Swedish, present tense verbs are the same for all persons:

• jag visar = I show
• du visar = you show
• han/hon/den visar = he/she/it shows
• vi visar = we show
• de visar = they show

So Swedish verbs are simpler than English here because they do not change depending on the subject.

After visar, Swedish normally uses the bare number:

• Tärningen visar sex. = The die shows six.

That is the most natural wording in this pattern.

You can also meet sexa in other contexts, where it behaves more like a noun meaning a six:

• Jag slog en sexa. = I rolled a six.

So:

• visar sex = the usual way with show
• en sexa = possible in other expressions, especially when talking about the result as a thing

Because sex here is being used as a number, not as a countable noun.

Compare:

• visar sex = shows six
• en sexa = a six

In this sentence, the die is showing the number six, so Swedish uses the numeral directly.

No, this is normal Swedish subject–verb–object/complement word order:

• Tärningen = subject
• visar = verb
• sex = what it shows

So the structure is very similar to English:

• The die / shows / six

This is a basic main-clause pattern in Swedish.

Not in normal neutral Swedish.

The usual sentence is:

• Tärningen visar sex.

Putting sex first would sound unusual and marked. Swedish can move things around for emphasis in some contexts, but that is not the standard phrasing for a simple statement like this.

Normally, no.

är means is, so Tärningen är sex would mean something like The die is six, which does not make sense in this context.

To talk about the number on the die, Swedish uses verbs like:

• visar = shows
• sometimes landade på = landed on

For example:

• Tärningen visar sex.
• Tärningen landade på sex.

A rough guide is:

• tärningen ≈ TAIR-ning-en

A few details:

• ä sounds somewhat like the vowel in English air in many accents, though not exactly the same.
• ng in tärning is pronounced like the ng in sing.
• The ending -en is usually light and unstressed.

So the stress is mainly on the first syllable: TÄR-ningen.

Not exactly.

Swedish sex means six, but it is pronounced more like seks.

So:

• sex = six
• pronunciation: roughly seks

This often surprises English speakers because the spelling looks like the English word sex.

You would use the plural noun:

• Tärningarna visar sex. = The dice show six.

Or if you mean one specific result among several dice, Swedish may phrase things differently depending on context.

Basic forms:

• tärningen = the die
• tärningarna = the dice

The verb form visar stays the same in the present tense, even with a plural subject.

Yes, it is natural and correct.

It is a straightforward way to describe what number is facing up on a die:

• Tärningen visar sex.

Depending on context, Swedes might also say things like:

• Det blev sex. = It was six / It came up six.
• Jag slog en sexa. = I rolled a six.

But your sentence is perfectly normal when describing what the die shows.

They focus on slightly different things.

• Tärningen visar sex. = The die currently shows six.
• Jag slog en sexa. = I rolled a six.

So:

• visar describes the visible result on the die
• slog en sexa describes the action and its outcome

Both are common, but they are used in different kinds of sentences.