Θέλουμε ένα διπλό δωμάτιο στο ξενοδοχείο.

Θέλουμε is the 1st person plural form of the verb θέλω, meaning to want.

The ending -ουμε tells you the subject is we. So Greek often does not need a separate word for we.

• θέλω = I want
• θέλεις = you want
• θέλει = he/she/it wants
• θέλουμε = we want

So Θέλουμε already includes the idea of we.

Usually, no.

Greek normally leaves out subject pronouns when the verb ending already makes the subject clear. So:

• Θέλουμε ένα διπλό δωμάτιο = normal, natural
• Εμείς θέλουμε ένα διπλό δωμάτιο = adds emphasis, contrast, or clarity

You might use εμείς if you want to stress we as opposed to someone else.

Ένα is the indefinite article for a neuter singular noun. It corresponds to a/an, and sometimes one, depending on context.

Here, δωμάτιο is a neuter noun, so the article must also be neuter:

• masculine: ένας / έναν
• feminine: μια or μία
• neuter: ένα

So:

• ένα δωμάτιο = a room

In this sentence, ένα means a, not necessarily one in an emphatic sense.

Because διπλό has to agree with δωμάτιο.

Greek adjectives change form to match the noun in:

• gender
• number
• case

Since δωμάτιο is neuter singular, the adjective is also neuter singular:

• masculine: διπλός
• feminine: διπλή
• neuter: διπλό

So:

• διπλό δωμάτιο = double room

This is standard adjective agreement in Greek.

Δωμάτιο is a neuter singular noun meaning room.

In this sentence it is the direct object of Θέλουμε, because it is the thing being wanted.

A useful point for learners: in many neuter nouns, the nominative and accusative singular look the same. So even though δωμάτιο is the object here, its form does not change.

That is why you see:

• dictionary form: το δωμάτιο
• object form: θέλουμε ένα δωμάτιο

Same noun form, different grammatical role.

Στο is a contraction of:

• σε = in, at, to
• το = the

So:

• σε + το = στο

This is very common in Greek and is written as one word.

In this sentence, στο ξενοδοχείο means something like:

• at the hotel
• in the hotel

The exact English preposition depends on context, but Greek uses σε very broadly.

Greek uses the definite article more often than English does.

So στο ξενοδοχείο is very natural Greek if you mean at the hotel or in the hotel, especially when the hotel is understood from context.

Compare:

• σε ξενοδοχείο = in/at a hotel
• στο ξενοδοχείο = in/at the hotel

In real conversation, Greek often sounds more article-heavy than English.

Yes, διπλό δωμάτιο is understandable and natural.

However, in hotel language you may also hear δίκλινο δωμάτιο, which more specifically means a room for two people.

So both can appear, but they are slightly different in feel:

• διπλό δωμάτιο = double room
• δίκλινο δωμάτιο = double/twin room, two-person room

If you are booking a hotel room, δίκλινο is also very common.

Θέλουμε ένα διπλό δωμάτιο is correct and perfectly understandable, but it can sound a bit direct in a service situation.

A more polite and natural version would often be:

• Θα θέλαμε ένα διπλό δωμάτιο = We would like a double room

So:

• Θέλουμε... = We want...
• Θα θέλαμε... = We would like...

If you are speaking to hotel staff, Θα θέλαμε is usually the better choice.

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

The sentence:

• Θέλουμε ένα διπλό δωμάτιο στο ξενοδοχείο

is a normal, neutral order.

But Greek can move parts around for emphasis. For example:

• Στο ξενοδοχείο θέλουμε ένα διπλό δωμάτιο
  This puts more attention on at the hotel

Even so, not every order sounds equally natural in every context. The original version is a safe, standard one for learners.

A rough pronunciation guide is:

THE-loo-me EH-na thee-PLO tho-MA-tee-o sto kse-no-tho-HEE-o

A few useful sound notes:

• θ sounds like th in think
• δ sounds like th in this
• χ before ι/ε is a softer sound, a bit like the h in German ich
• the accent mark shows the stressed syllable

So the stressed parts are:

• Θέλουμε
• ένα
• διπλό
• δωμάτιο
• ξενοδοχείο

That stress pattern is important for sounding natural.