Η κυριότητα είναι ξεκάθαρη.

Η is the definite article for a feminine singular noun in the nominative case.

Here it matches κυριότητα, which is feminine singular. Greek uses articles much more regularly than English, even with abstract nouns, so Η κυριότητα is perfectly natural.

It is in the nominative singular.

You can tell because it is the subject of the sentence: it is the thing that is something. In Η κυριότητα είναι ξεκάθαρη, the subject is Η κυριότητα, so nominative is the expected case.

Κυριότητα is feminine.

That matters because in Greek, adjectives usually agree with the noun they describe in:

• gender
• number
• case

So because κυριότητα is feminine singular nominative, the adjective appears as ξεκάθαρη, which is also feminine singular nominative.

Because the adjective has to agree with κυριότητα.

The adjective ξεκάθαρος has different forms:

• ξεκάθαρος = masculine
• ξεκάθαρη = feminine
• ξεκάθαρο = neuter

Since κυριότητα is feminine, the correct form here is ξεκάθαρη.

Είναι is the 3rd person singular present tense of είμαι (to be).

It corresponds to is in English.

So the structure is:

• Η κυριότητα = the subject
• είναι = is
• ξεκάθαρη = clear

This is a very common Greek sentence pattern.

In standard Greek, είναι is normally kept in a full sentence like this.

Greek often drops subject pronouns because the verb ending already shows the person, but that does not mean the verb itself disappears. So:

• Η κυριότητα είναι ξεκάθαρη. = normal full sentence

In headlines, notes, or very compressed styles, the verb might sometimes be omitted, but that is not the normal complete-sentence pattern learners should imitate first.

Yes. Greek word order is more flexible than English, because the endings help show what each word is doing.

For example, you could also say:

• Ξεκάθαρη είναι η κυριότητα.

That version puts more emphasis on ξεκάθαρη.
The basic neutral order, though, is:

• Η κυριότητα είναι ξεκάθαρη.

So the original sentence is the most straightforward version.

It is a very normal and natural word. It is common in everyday Greek and is also acceptable in many formal contexts.

It has the sense of clear, obvious, or unambiguous depending on context.

In very technical or legal writing, you might also see more formal alternatives, but ξεκάθαρη does not sound wrong here.

A practical pronunciation guide is:

kee-ree-OH-tee-ta

The stress is on -ό-:

• κυ-ρι-ό-τη-τα

A few helpful notes:

• κ = k
• υ here sounds like ee
• οι in Modern Greek also sounds like ee
• τη sounds like tee

So the whole word has a smooth kee-ree-OH-tee-ta rhythm.

A practical pronunciation guide is:

kse-KA-tha-ree

The stress is on κά.

A few key sounds:

• ξ = ks
• θ = the th in think
• η sounds like ee

So ξεκάθαρη is approximately kse-KA-tha-ree.

Because this sentence uses the definite article Η, not an indefinite one.

Also, Greek does not have a separate word exactly equivalent to English a/an in the same way. It can express indefiniteness, but here the noun is presented as definite: the ownership.

So the structure is specifically:

• Η κυριότητα = the ownership

not an indefinite form.

Yes.

In this sentence, ξεκάθαρη is a predicative adjective. That means it comes after είναι and describes the subject.

So:

• Η κυριότητα = subject
• είναι = linking verb
• ξεκάθαρη = adjective describing the subject

This is similar to English sentences like:

• The door is open
• The answer is obvious

Greek uses this pattern very often.