Kamara iki kişilik.

Kamara means cabin or berth/cabin room, especially on a ship or sometimes a train. It is not the usual general word for room; that would be oda.

A useful distinction:

• kamara = cabin
• kamera = camera

So this sentence is about a cabin, not anything related to photography.

In Turkish, the verb to be is often not stated in the 3rd person singular present tense.

So:

• Kamara iki kişilik. = The cabin is for two people.

Turkish does not need a separate word like is here. This is completely normal.

If you want a more formal or emphatic version, you may sometimes see:

• Kamara iki kişiliktir.

The -tir part adds a more formal, matter-of-fact tone, but in everyday speech it is usually omitted.

Literally, iki kişilik means something like:

• for two people
• two-person
• with space/capacity for two people

Breakdown:

• iki = two
• kişi = person
• kişilik = for ... people / ...-person

So iki kişilik works like an adjective describing capacity.

Examples:

• iki kişilik oda = a room for two people
• iki kişilik masa = a table for two people
• iki kişilik kamara = a two-person cabin

Here, -lik turns kişi into a form meaning for X people or having capacity for X people when used with a number.

So:

• bir kişilik = for one person
• iki kişilik = for two people
• üç kişilik = for three people

This is a very common pattern in Turkish.

For example:

• tek kişilik oda = single room
• çift kişilik oda = double room
• dört kişilik aile = a family of four

So in this sentence, kişilik is not just a dictionary word by itself; it is part of a productive pattern.

Because iki kişi simply means two people, not for two people.

Compare:

• iki kişi = two people
• iki kişilik = for two people / two-person

So:

• Kamara iki kişi sounds wrong because it would seem to say The cabin is two people
• Kamara iki kişilik correctly means The cabin is for two people

English also makes a similar distinction:

• two people
• a two-person cabin

By itself, kamara can mean either the cabin or a cabin, depending on context. Turkish does not have definite and indefinite articles like English the and a/an in the same way.

So Kamara iki kişilik could be understood as:

• The cabin is for two people
• A cabin is for two people

In real use, context usually makes it clear.

If you want to be more explicit:

• Bir kamara iki kişilik. = A cabin is for two people. / One cabin is for two people.
• Bu kamara iki kişilik. = This cabin is for two people.
• O kamara iki kişilik. = That cabin is for two people.

This is a very normal Turkish sentence pattern:

• subject/topic + predicate

Here:

• Kamara = the thing being talked about
• iki kişilik = what is being said about it

So the structure is basically:

• The cabin
  • is for two people

Turkish often places the topic first and the description after it.

Yes, but that is usually a noun phrase, not a complete sentence.

• İki kişilik kamara = a two-person cabin
• Kamara iki kişilik. = The cabin is for two people.

So the difference is:

1. İki kişilik kamara
   This is just a phrase naming something.

2. Kamara iki kişilik.
   This is a full sentence making a statement.

English has the same contrast:

• a two-person cabin = phrase
• The cabin is for two people = sentence

Yes. Kamara iki kişiliktir is grammatically correct.

The difference is mainly tone:

• Kamara iki kişilik. = neutral, everyday, natural
• Kamara iki kişiliktir. = more formal, more explicit, sometimes more written or official

In spoken Turkish, the shorter version without -tir is much more common.

You use the normal Turkish patterns for nominal sentences.

Negative:

• Kamara iki kişilik değil. = The cabin is not for two people.

Question:

• Kamara iki kişilik mi? = Is the cabin for two people?

Negative question:

• Kamara iki kişilik değil mi? = Isn’t the cabin for two people?

Notice that mi is written separately, while değil is the negation word used in this kind of sentence.

Yes, very common. Turkish regularly uses number + kişilik to express capacity.

Examples:

• bir kişilik yatak = single bed
• iki kişilik oda = double room / room for two
• altı kişilik masa = table for six
• on kişilik grup = group of ten

So once you learn this pattern, you can use it with many nouns, not just kamara.