Moja kapa je mokra od kiše.

Because kapa is a feminine singular noun, so the possessive adjective moj has to agree with it.

The forms are:

• moj = masculine singular
• moja = feminine singular
• moje = neuter singular

So:

• moj kaput = my coat
• moja kapa = my hat
• moje selo = my village

In Croatian, possessive words like my change form to match the noun’s gender, number, and case.

For the same reason: mokra must agree with kapa, which is feminine singular.

The basic adjective forms are:

• mokar = wet, masculine
• mokra = wet, feminine
• mokro = wet, neuter

So you get:

• Kaput je mokar. = The coat is wet.
• Kapa je mokra. = The hat is wet.
• More je mokro. = The sea is wet.

Croatian adjectives usually change form to match the noun they describe.

Je means is. It is the 3rd person singular form of the verb biti = to be.

So:

• ja sam = I am
• ti si = you are
• on/ona/ono je = he/she/it is

In this sentence:

• Moja kapa je mokra = My hat is wet

Because after od in this meaning, Croatian uses the genitive case.

The noun is:

• kiša = rain

But in the genitive singular it becomes:

• kiše

So:

• od kiše = from the rain / because of the rain / with rain as the source

This is a very common pattern:

• čaša vode = a glass of water
• bez šećera = without sugar
• od kiše = from the rain

Literally, od kiše means from the rain.

In this sentence, it explains the cause of the wetness:

• Moja kapa je mokra od kiše. = My hat is wet from the rain.

So od here is not mainly about physical direction, but about source/cause.

Other similar examples:

• Umoran sam od posla. = I’m tired from work.
• Prljav je od blata. = He is dirty from mud.

Yes, but it means something slightly different in structure.

• Moja kapa je mokra. = My hat is wet.
  This is a full sentence.

• moja mokra kapa = my wet hat
  This is just a noun phrase, not a complete sentence by itself.

So if you say:

• Moja mokra kapa leži na stolu. = My wet hat is lying on the table.

that works because mokra is directly describing kapa inside the noun phrase.

Yes, Croatian word order is more flexible than English word order.

The neutral, most straightforward version is:

• Moja kapa je mokra od kiše.

But you could also say:

• Mokra je moja kapa.
• Od kiše je moja kapa mokra.

These alternatives may sound more emphatic, poetic, or more dependent on context. For learners, the original word order is the safest and most natural starting point.

Yes, you can leave out moja if the context already makes it clear whose hat it is.

• Kapa je mokra od kiše. = The hat is wet from the rain.
• Moja kapa je mokra od kiše. = My hat is wet from the rain.

Croatian often leaves out information when it is already understood from the situation.

One strong clue is the ending -a. Many Croatian nouns ending in -a are feminine.

So learners often guess correctly that:

• kapa = feminine
• kiša = feminine

But this is only a general rule, not a perfect one. There are exceptions in Croatian, so it is still best to learn the noun together with its gender.

In this sentence, the feminine forms moja and mokra confirm that kapa is feminine.

A simple approximate pronunciation is:

MO-ya KA-pa ye MO-kra od KEE-she

A few useful sound notes:

• j is like English y
• š is like English sh
• je sounds roughly like ye

So:

• moja ≈ moya
• kiše ≈ keeshe

The stress patterns can vary a bit by region, but this approximation will help you be understood.

Because Croatian has no articles like English a or the.

So kapa can mean:

• a hat
• the hat
• just hat

The exact meaning depends on context.

In this sentence, moja kapa clearly means my hat, so no article is needed.

Yes, in many contexts that is a very natural English translation.

Depending on context, Moja kapa je mokra od kiše could be understood as:

• My hat is wet from the rain.
• My hat is wet because of the rain.

The Croatian phrase od kiše points to the rain as the reason/source of the wetness.

The dictionary forms are:

• moj = my
• kapa = hat, cap
• biti = to be
• mokar = wet
• od = from, of
• kiša = rain

In the sentence, some of these appear in changed forms:

• moj → moja
• mokar → mokra
• kiša → kiše

Those changes happen because Croatian uses agreement and cases.