הסלון מואר, והתקרה גבוהה.

A natural pronunciation is:

ha-sa-LON mu-AR, ve-ha-tik-RA ge-vo-HA

A few notes:

• הסלון = ha-salon = the living room
• מואר = mu'ar = lit / illuminated
• והתקרה = ve-ha-tikra = and the ceiling
• גבוהה = gevoha = high

The stress is usually toward the end of each word:

• saLON
• muAR
• tikRA
• gevoHA

In Hebrew, the verb to be is usually omitted in the present tense.

So:

• הסלון מואר literally looks like the living room lit
• התקרה גבוהה literally looks like the ceiling high

But in natural English, we translate them as:

• The living room is lit
• The ceiling is high

This is very normal in Hebrew. In the present tense, Hebrew often just puts the noun and the adjective together.

The prefix ה־ is the Hebrew definite article, meaning the.

So:

• סלון = living room
• הסלון = the living room

and:

• תקרה = ceiling
• התקרה = the ceiling

Hebrew attaches the directly to the beginning of the word instead of writing it as a separate word like English does.

Because two prefixes are being added:

• ו־ = and
• ה־ = the

So:

• תקרה = ceiling
• התקרה = the ceiling
• והתקרה = and the ceiling

This is very common in Hebrew. Prefixes stack onto the beginning of the word.

מואר means lit, illuminated, or well-lit.

It comes from the root א־ו־ר, which is related to light:

• אור = light

So הסלון מואר means the living room is full of light or has good lighting.

It is not the usual everyday adjective for bright in the sense of a bright color or a smart person. Here it specifically suggests that the room is illuminated.

Because גבוהה is the feminine singular form of high.

In Hebrew, adjectives must agree with the noun in gender and number.

• תקרה (ceiling) is feminine singular
• so the adjective must also be feminine singular:
  • גבוהה = high (feminine singular)

Compare:

• גבוה = high (masculine singular)
• גבוהה = high (feminine singular)
• גבוהים = high (masculine plural)
• גבוהות = high (feminine plural)

Yes. מואר is masculine singular here because סלון is masculine singular.

So the agreement is:

• הסלון מואר
  סלון = masculine singular
  מואר = masculine singular

• התקרה גבוהה
  תקרה = feminine singular
  גבוהה = feminine singular

This agreement between noun and adjective is a basic and very important feature of Hebrew.

Hebrew nouns have grammatical gender, and you often just have to learn it with each noun.

In this sentence:

• סלון is masculine
• תקרה is feminine

There are patterns that help sometimes:

• many feminine nouns end in ־ה or ־ת
• תקרה ends in ־ה, so its feminine gender is not surprising

But not every noun follows a simple rule, so it is best to memorize the gender together with the word.

In this sentence, it behaves like an adjective: lit / illuminated.

Historically and grammatically, it is related to a participial/passive form, but for learners it is often easiest to understand it here as a descriptive word.

So in:

• הסלון מואר

you can think of מואר as describing the living room, just like גבוהה describes the ceiling.

You usually would not say that in a simple descriptive sentence.

The most natural form is:

• הסלון מואר
• התקרה גבוהה

Adding הוא or היא can sound unnatural in a basic sentence like this, unless you are creating emphasis, contrast, or a special style.

So for ordinary present-tense descriptions, leave out is and do not insert a pronoun.

In Hebrew, predicate adjectives usually come after the noun.

So:

• הסלון מואר = the living room is lit
• התקרה גבוהה = the ceiling is high

That is normal Hebrew word order for this kind of sentence.

Also, Hebrew often places descriptive adjectives after nouns even inside noun phrases, though the exact structure can differ depending on whether you mean:

• a high ceiling
• or
• the ceiling is high

Here it is clearly the second type: a full sentence.

Yes, Hebrew can sometimes change word order for emphasis, but the given order is the most neutral and natural:

• הסלון מואר, והתקרה גבוהה.

If you change the order, it may sound more marked or literary. For a learner, the original version is the best model to follow.

Both can refer to a living room, but they are used a bit differently.

• סלון is very common in everyday speech
• חדר מגורים is more literally living room / sitting room, and can sound more formal or descriptive

In normal conversation, many speakers would naturally say סלון.

The comma separates two related clauses:

• הסלון מואר
• והתקרה גבוהה

In English, this is similar to:

• The living room is lit, and the ceiling is high.

The comma helps readability, but in short Hebrew sentences, punctuation can be somewhat flexible in informal writing. The sentence is perfectly natural as written.