Η ασθένεια χρειάζεται θεραπεία.

Yes. Η is the feminine singular definite article in the nominative case, so here it means the.

• η ασθένεια = the illness / the disease

A very important point for English speakers: Greek articles change for gender, number, and case, so there is not just one word for the.

For example:

• ο = masculine nominative singular
• η = feminine nominative singular
• το = neuter nominative singular

Here, ασθένεια is feminine, so it takes η.

A rough pronunciation is:

ee a-STHEH-nya khree-A-zeh-teh theh-ra-pee-A

A few notes:

• Η is pronounced ee
• ασθένεια has stress on -θέ-
• χρειάζεται has stress on -ά-
• θεραπεία has stress on the final -ί-

Some sounds are not exact matches to English:

• θ sounds like th in think
• χ is a harsher sound, something like the h in huge for some speakers, or the ch in German Bach depending on the vowel around it

Ασθένεια is a noun, meaning illness or disease.

In this sentence it is:

• feminine
• singular
• nominative
• the subject of the sentence

Its ending -εια is just part of the noun’s normal form. You do not need to assume that every noun ending in -εια behaves exactly the same way, but many feminine nouns do have endings like this.

So here:

• η ασθένεια = the illness
  and it is the thing that needs something.

Here χρειάζεται means needs.

So:

• Η ασθένεια χρειάζεται θεραπεία.
• The illness needs treatment.

This is the 3rd person singular present form, because the subject is η ασθένεια = the illness, which is singular.

You can think of it like:

• I need
• you need
• he/she/it needs

and here it is the it needs form.

The dictionary form is usually given as χρειάζομαι, meaning I need.

This is one of those Greek verbs that looks like a middle/passive form but often has an active meaning in English.

A few forms are:

• χρειάζομαι = I need
• χρειάζεσαι = you need
• χρειάζεται = he/she/it needs

So in this sentence:

• η ασθένεια χρειάζεται = the illness needs

Because Greek does not have an indefinite article like English a/an.

So:

• θεραπεία can mean treatment or a treatment, depending on context
• η θεραπεία would mean the treatment

In this sentence, θεραπεία is indefinite/general, so English often translates it as:

• treatment or
• a treatment

But the most natural English translation is usually The illness needs treatment.

Because the sentence is talking about:

• a specific illness: η ασθένεια = the illness
• but treatment in general: θεραπεία = treatment

Greek often leaves a noun without the article when it is being used in a more general or indefinite sense.

So the contrast is:

• η ασθένεια = the illness
• θεραπεία = treatment

If you said η θεραπεία, that would mean the treatment, referring to a specific treatment already known from the context.

In this sentence, θεραπεία is the direct object of the verb χρειάζεται, so it is in the accusative case.

This is a useful thing for learners to notice: for some feminine nouns, the nominative and accusative singular can look the same.

So even though θεραπεία is accusative here, it looks the same as its basic dictionary form.

Structure:

• η ασθένεια = subject, nominative
• χρειάζεται = verb
• θεραπεία = object, accusative

The subject is η ασθένεια.

You can tell because:

1. It has the nominative article η
2. It is the thing doing the action of the verb in grammatical terms
3. The verb is 3rd person singular, agreeing with ασθένεια

So the sentence pattern is:

• Subject + Verb + Object
• Η ασθένεια + χρειάζεται + θεραπεία

Even though English speakers may think of an illness as not really doing anything, grammatically it is still the subject of the verb needs.

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

The neutral, straightforward order here is:

• Η ασθένεια χρειάζεται θεραπεία.

But Greek can change the order for emphasis. For example:

• Θεραπεία χρειάζεται η ασθένεια.

This still means essentially The illness needs treatment, but now θεραπεία is emphasized more.

English usually has to keep a more fixed order, while Greek can move things around more easily because the grammar gives clearer clues.

The accent marks show which syllable is stressed.

That is very important in Greek pronunciation.

• ασθένεια → stress on θέ
• χρειάζεται → stress on άζ
• θεραπεία → stress on ί

If you put the stress in the wrong place, Greek may sound unnatural, and in some cases it can even change meaning.

So when learning vocabulary, it is best to memorize the word with its accent mark.

Yes. Θεραπεία can mean:

• treatment
• therapy

Which translation is best depends on context.

In a sentence like this one, treatment is usually the most natural English choice:

• Η ασθένεια χρειάζεται θεραπεία.
• The illness needs treatment.

But in another context, especially medical or psychological, therapy might also work.

Yes. That is a very natural translation too.

Depending on context, you could translate it as:

• The illness needs treatment.
• The disease needs treatment.
• The illness requires treatment.
• The disease requires treatment.

The Greek sentence itself is simple and natural, and English gives you a few good options.

Because Greek usually does not need subject pronouns when the verb form already shows the person and number.

In English, you need:

• It needs treatment

In Greek, the verb ending already helps identify the subject, and here the noun η ασθένεια is stated anyway, so no separate pronoun is needed.

Greek often omits pronouns unless they are needed for emphasis or contrast.

You would say:

Η ασθένεια χρειάζεται τη θεραπεία.

or

Η ασθένεια χρειάζεται την θεραπεία.

Both represent the treatment, with the feminine accusative singular article.

In everyday modern Greek, before a consonant you will often see the shorter form:

• τη θεραπεία

So the difference is:

• θεραπεία = treatment / a treatment
• τη θεραπεία = the treatment

Yes. It is a very normal Greek sentence pattern:

• definite subject + verb + object

It is short, clear, and idiomatic.

You can use the same pattern with many other nouns:

• Ο ασθενής χρειάζεται ξεκούραση. = The patient needs rest.
• Το παιδί χρειάζεται βοήθεια. = The child needs help.

So this sentence is a good model for building similar Greek sentences.