Mrežni priključak je spreman.

Mrežni is an adjective meaning network or network-related.

It comes from the noun mreža, meaning network or net. Croatian often forms adjectives from nouns, so:

• mreža = network
• mrežni = network-related

In this sentence, mrežni describes priključak, so the two words together mean something like network port / network connection point / network socket, depending on context.

Priključak is a masculine noun. Its meaning depends a bit on context, but it often means:

• connection
• connector
• port
• socket
• attachment point

In technical or computer-related language, mrežni priključak usually refers to a network port, network socket, or network connection point.

So this is one of those words where the best English translation depends on the situation, even though the Croatian word stays the same.

Je is the 3rd person singular present tense of biti, which means to be.

So:

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

Here, the subject is mrežni priključak, which is singular, so Croatian uses je = is.

The sentence structure is:

• Mrežni priključak = subject
• je = is
• spreman = ready

Because spreman has to agree with the noun priključak.

Priključak is:

• masculine
• singular
• nominative

So the adjective also appears in the masculine singular nominative form:

• spreman = masculine singular
• spremna = feminine singular
• spremno = neuter singular

Examples:

• Veza je spremna. = The connection is ready.
  
  • veza is feminine, so spremna
• Sučelje je spremno. = The interface is ready.
  
  • sučelje is neuter, so spremno
• Priključak je spreman. = masculine, so spreman

Yes. Mrežni priključak is in the nominative because it is the subject of the sentence.

Also, after the verb biti in a sentence like this, the predicate adjective usually agrees with the subject and is also in the nominative:

• Mrežni priključak = nominative subject
• spreman = nominative adjective agreeing with the subject

So this is a very standard pattern in Croatian:

• X je Y
• The X is Y

Normally, no. In standard Croatian, je is usually required in a sentence like this.

So:

• Mrežni priključak je spreman. = correct
• Mrežni priključak spreman. = not standard as a normal full sentence

In headlines, labels, interface text, or very clipped style, you might sometimes see the verb omitted, but in normal grammar you should keep je.

The normal, neutral word order is:

• Mrežni priključak je spreman.

That is the most natural version in most contexts.

Croatian word order is more flexible than English, so other orders are possible for emphasis, for example:

• Spreman je mrežni priključak.
• Je li mrežni priključak spreman? = Is the network port ready?

But for a basic statement, the original order is best.

A rough English-friendly guide:

• mrežni ≈ MREZH-nee
• priključak ≈ pree-KLYOO-chak
• je ≈ yeh
• spreman ≈ SPRE-man

A few sound notes:

• ž sounds like the s in measure
• č sounds like ch in church
• lj is a single sound, roughly like the lli in million for many learners

Croatian stress is not usually marked in normal writing, so learners often just need to hear the word a few times.

Yes, it is natural in technical Croatian, especially in IT, networking, and device documentation.

Depending on context, Croatian may also use other related terms, such as:

• mrežni port
• mrežna utičnica
• priključak za mrežu

But mrežni priključak is perfectly normal and sounds like standard technical language.

Yes. Spreman can mean:

• ready
• prepared
• available for use
• sometimes willing, depending on context

In this sentence, the most natural idea is ready or available/operational.

So in a technical context, spreman suggests that the network port or connection point is functioning, available, or ready to be used.

You would change both the noun phrase and the adjective so they agree in plural.

Singular:

• Mrežni priključak je spreman.

Plural:

• Mrežni priključci su spremni.

Changes:

• priključak → priključci = ports/connections
• je → su = are
• spreman → spremni = ready, masculine plural

This is a good example of Croatian agreement: nouns, adjectives, and sometimes verbs all change together.