Η αστυνομική αρχή και η προξενική αρχή είναι κοντά.

Η is the feminine singular definite article, meaning the.

It appears twice because Greek normally repeats the article when two definite noun phrases are joined by και:

• η αστυνομική αρχή
• η προξενική αρχή

So the structure is literally the police authority and the consular authority. Repeating the article is the standard, natural choice here.

Also, Η is just capitalized because it is at the beginning of the sentence; it is the same word as lowercase η.

They are adjectives, and Greek adjectives must agree with the noun they describe in:

• gender
• number
• case

The noun αρχή is feminine, singular, nominative, so both adjectives also appear in the feminine singular nominative form:

• αστυνομικός → αστυνομική
• προξενικός → προξενική

So:

• αστυνομική αρχή = police authority
• προξενική αρχή = consular authority

Here αρχή means authority, office, or administrative body.

This word is very common in Greek and can have several meanings depending on context, including:

• beginning
• principle
• authority

In this sentence, because it is combined with αστυνομική and προξενική, it clearly means authority:

• αστυνομική αρχή = police authority
• προξενική αρχή = consular authority

They are in the nominative, because they form the subject of the sentence.

Each noun phrase is feminine singular nominative:

• η αστυνομική αρχή
• η προξενική αρχή

Even though the whole subject is made of two coordinated parts, each individual noun phrase is still singular in form. They are simply linked by και.

In Modern Greek, the present tense of είμαι (to be) has the same form in both third person singular and third person plural:

• είμαι = I am
• είσαι = you are
• είναι = he/she/it is
• είμαστε = we are
• είστε = you are
• είναι = they are

So although η αστυνομική αρχή και η προξενική αρχή is a plural subject overall, the correct verb form is still είναι.

Here κοντά means near, close, or nearby.

In this sentence it works as a predicate after είναι, so the idea is that the two authorities are close / nearby.

A very important point: κοντά does not change form here. It is not agreeing like an adjective would.

In this sentence, κοντά is best understood as an adverbial/predicative word, not as a regular adjective.

That is why it does not change for gender or number. It stays κοντά regardless of what the subject is.

Compare:

• Είναι κοντά. = It/they are near.
• Είναι κοντά στο λιμάνι. = It/they are near the port.

When you want to say near to something specific, Greek often uses κοντά σε or κοντά στο / στην / στους / στις depending on the noun that follows.

It can depend on context.

By itself, είναι κοντά often means are nearby or are close. In this sentence, many listeners would naturally understand that the police authority and the consular authority are close to each other, but the wording is not maximally explicit.

If you wanted to be very explicit about close to each other, Greek could say something like:

• είναι κοντά η μία στην άλλη = they are close to each other

If you wanted to say they are near some other place, you would normally add that place:

• είναι κοντά στο κέντρο = they are near the center

Because that is the normal, neutral position for attributive adjectives in Modern Greek.

So:

• αστυνομική αρχή
• προξενική αρχή

are the standard way to say these phrases.

Greek can sometimes place adjectives after the noun, but that is usually more marked, stylistic, or context-dependent. For a learner, putting the adjective before the noun is the safest default.

Greek word order is more flexible than English word order.

The sentence as given:

• Η αστυνομική αρχή και η προξενική αρχή είναι κοντά.

is a neutral, straightforward order: subject + verb + complement.

Other orders are possible for emphasis or style, but they would sound less neutral. For example, Greek can move κοντά earlier if the speaker wants to emphasize it. Still, the given order is the most natural one for a basic statement.

A rough pronunciation is:

i astinomi-KI ar-CHI ke i proxeni-KI ar-CHI I-ne kon-TA

The accent marks show which syllable is stressed:

• αστυνομική
• αρχή
• προξενική
• είναι
• κοντά

A few pronunciation notes:

• η is pronounced like ee in see
• χ in αρχή is not an English h; before η it is a softer sound, similar to German ich
• ξ in προξενική sounds like ks

So the written accents are very useful: they tell you where to place the stress.