Το χειρουργείο είναι έτοιμο.

Το is the definite article in Greek, meaning the.

In this sentence, το χειρουργείο means the operating room or the surgery, depending on context.

Greek uses articles very often, so where English might sometimes drop the, Greek usually keeps it.

Because χειρουργείο is a neuter singular noun.

In Greek, nouns have gender:

• masculine
• feminine
• neuter

χειρουργείο is neuter, so it takes:

• the neuter article το
• a neuter form of the adjective, here έτοιμο

So the pattern is:

• το χειρουργείο
• είναι
• έτοιμο

All of that matches grammatically.

Because the adjective has to agree with the noun.

The noun χειρουργείο is neuter singular, so the adjective must also be neuter singular:

• masculine: έτοιμος
• feminine: έτοιμη
• neuter: έτοιμο

Since the sentence is about το χειρουργείο, the correct form is έτοιμο.

It can mean different but related things depending on context.

Common meanings include:

• operating room
• surgery as a medical/clinical context
• sometimes the broader idea of a surgical procedure, though Greek often uses εγχείρηση more specifically for operation/surgical procedure

So this sentence could mean:

• The operating room is ready or, in some contexts,
• The surgery setup is ready

The exact meaning depends on the situation.

Είναι means is or are.

It is a form of the verb είμαι = to be.

So:

• Το χειρουργείο είναι έτοιμο.
• The operating room is ready.

Greek uses είναι for both singular and plural in the present tense:

• είναι = is / are

The subject tells you whether it is singular or plural.

Greek often does not use subject pronouns unless they are needed for emphasis or clarity.

English says:

• It is ready

Greek normally just says:

• Είναι έτοιμο

or, with the noun:

• Το χειρουργείο είναι έτοιμο

The noun itself already tells you what is ready, so no extra it is necessary.

Not completely. Greek word order is more flexible than English.

The most neutral order here is:

• Το χειρουργείο είναι έτοιμο.

But other orders are possible for emphasis, such as:

• Έτοιμο είναι το χειρουργείο.

That version sounds more marked, as if stressing ready.

For a learner, the standard order article + noun + verb + adjective is the safest one to use.

A practical pronunciation is:

hee-roor-yee-O

A slightly more careful guide:

• χει sounds roughly like hee, but with a softer initial sound
• ρουρ sounds like roor
• γεί sounds like yee
• the stress is on the -εί- part

So the stress falls near the end:

• χειρουργείο

If you want to sound more natural, pay attention to the stress.

• είναι ≈ EE-ne
• έτοιμο ≈ E-toi-mo or more practically EH-tee-mo

The stressed syllables are:

• ΕΙναι
• Ετοιμο

Greek stress matters, so it is important to pronounce the accented syllable clearly.

Its basic meaning is ready, but like English ready, it can cover a few ideas depending on context:

• prepared
• set
• available for use
• completed and ready

So in this sentence, έτοιμο could mean:

• ready for use
• prepared
• all set

It is in the nominative singular.

This is because it is the subject of the sentence:

• Το χειρουργείο = the thing that is ready

Also, after the verb είμαι, the adjective έτοιμο agrees with the subject, so it is also nominative neuter singular.

Normally, no. That would sound unnatural in ordinary Greek.

If you mean the operating room, you usually say:

• Το χειρουργείο είναι έτοιμο.

If you wanted an indefinite sense, Greek often expresses that differently rather than simply dropping the article in this kind of sentence.

So for normal usage, keep το.

It is standard, natural Greek and can work in both everyday and professional contexts.

It is not especially slangy or literary. It sounds like a normal statement someone might say in a hospital or medical setting.

Only the article and adjective would change to match the noun.

For example:

• masculine: Ο γιατρός είναι έτοιμος.
  The doctor is ready.

• feminine: Η νοσοκόμα είναι έτοιμη.
  The nurse is ready.

• neuter: Το χειρουργείο είναι έτοιμο.
  The operating room is ready.

This is a very important Greek pattern: article + noun + adjective must agree in gender and number.