De trui is roze.

Because trui is a de-word in Dutch. Dutch nouns usually take either de or het, and you have to learn which article goes with each noun.

A useful rule:

• de is used for common-gender nouns
• het is used for neuter nouns

So you learn the noun as de trui, not just trui.

Also, all plural nouns take de, but here trui is singular.

Is is the third-person singular present form of the verb zijn, which means to be.

So:

• ik ben = I am
• jij bent = you are
• hij/zij/het is = he/she/it is

In De trui is roze, is works just like English is.

Because roze is being used as a predicate adjective: it describes the subject after a linking verb.

The structure is:

subject + zijn + adjective

So:

• De trui is roze = The sweater is pink.

Compare that with an adjective directly before a noun:

• de roze trui = the pink sweater

Both are correct, but they mean slightly different things grammatically:

• de roze trui = adjective inside the noun phrase
• de trui is roze = adjective after is, describing the subject

In this sentence, roze is in its basic form after is.

That can be confusing because roze already ends in -e. This is just how the word normally looks.

Compare:

• De trui is roze
• de roze trui

Here the form stays the same.

But with many other adjectives, Dutch does show a difference:

• De trui is rood = The sweater is red.
• de rode trui = the red sweater.

So roze is not adding a special ending here; the word itself is simply roze.

Yes. That is very natural Dutch.

The difference is:

• De trui is roze = The sweater is pink.
• de roze trui = the pink sweater

So if you want to describe the sweater inside the noun phrase, put the adjective before the noun:

• de roze trui

If you want to make a full sentence saying what color it is, use:

• De trui is roze

Trui is pronounced roughly like troy with a different vowel that is very Dutch.

The difficult part is ui, which is a famous Dutch sound and does not exist naturally in English. It is usually the hardest part for learners.

A few tips:

• start with tr
• the ui is one diphthong, not two separate vowels
• listen to native audio if possible, because English spelling approximations are not very reliable here

So yes: the word is short, but the vowel is tricky.

Roze is pronounced roughly like ROH-zuh.

A few details:

• the stress is on the first syllable
• the z is pronounced like English z
• the final -e is usually a soft uh sound

So it is approximately: ROH-zuh

Yes. Roze is the standard everyday Dutch word for pink.

So if you want to say something is pink, roze is the normal word to use:

• De jurk is roze
• De muur is roze

English pink is not the standard basic Dutch color word in this context.

Because Dutch does not capitalize all nouns.

Unlike German, Dutch only capitalizes:

• the first word of a sentence
• proper names

So:

• De trui is roze. → De is capitalized because it begins the sentence
• trui and roze stay lowercase

Normally, no. In a full standard sentence, you need the article here:

• De trui is roze.

If you remove it and say Trui is roze, that is not normal standard Dutch for this meaning.

If you wanted a sweater, you would use:

• Een trui is roze.

But that changes the meaning from the sweater to a sweater.