في سهرة الألعاب لعبة لوحية.

Arabic often uses nominal sentences, especially in the present tense, without a word for is/are.

So في سهرة الألعاب لعبة لوحية literally has the structure:

• في سهرة الألعاب = at the game night
• لعبة لوحية = a board game

The idea is essentially At the game night, there is a board game or There is a board game at the game night.

Arabic does not need a separate verb like is or there is here.

في is a preposition meaning in or at, depending on context.

Here it introduces the setting:

• في سهرة الألعاب = at the game night

Starting with the place/time phrase is very natural in Arabic. It sets the scene first, then gives the thing being talked about.

سهرة means an evening gathering, evening party, or night event.

It often refers to a social evening where people stay up together, talk, eat, watch something, or do an activity.

So سهرة الألعاب is something like:

• game night
• literally the games evening/gathering

This is an iḍāfa construction, often called a construct phrase.

In Arabic, to say X of Y, you usually put the two nouns together:

• سهرة = evening gathering
• الألعاب = the games

So:

• سهرة الألعاب = the evening gathering of the games
  more naturally: game night

Important things about iḍāfa:

1. The first noun usually does not take ال here.
2. The second noun can be definite, and if it is definite, the whole phrase becomes definite.
3. The relationship is often translated with of in English, but sometimes English uses a different phrasing, like game night.

Because it is the second part of the iḍāfa.

• ألعاب = games
• الألعاب = the games

In سهرة الألعاب, the second noun is definite, so the whole phrase becomes definite:

• سهرة الألعاب = the game night

This is normal in Arabic. The definiteness of the second noun determines the definiteness of the whole iḍāfa phrase.

Because the sentence is introducing a board game, not the board game.

• لعبة = a game
• اللعبة = the game

So لعبة لوحية means a board game.

This is common in Arabic existential-style sentences: after a place phrase, an indefinite noun often appears to mean there is/there are ...

Compare the idea:

• في الغرفة كتاب = There is a book in the room

Similarly:

• في سهرة الألعاب لعبة لوحية = There is a board game at the game night

Because لوحية is an adjective describing لعبة, and Arabic adjectives must match the noun they describe.

They match in:

• definiteness/indefiniteness
• gender
• number
• case

So:

• لعبة = feminine singular, indefinite
• لوحية = feminine singular, indefinite

That is why you get:

• لعبة لوحية = a board game

If the noun were definite, the adjective would also be definite:

• اللعبة اللوحية = the board game

Because it is describing لعبة, and لعبة is feminine.

Arabic adjectives must agree with the noun they modify. Since لعبة ends in ـة and is feminine, the adjective is also feminine:

• لعبة → feminine noun
• لوحية → feminine adjective

لوحية comes from لوح, which means board or plank.

So لوحية literally means something like:

• board-related
• board-based

In the phrase لعبة لوحية, it means board game.

This is a good example of how Arabic often forms adjectives from nouns.

Yes, effectively it is.

Arabic often expresses there is/there are by using:

• a prepositional phrase or adverb first
• then an indefinite noun

So here:

• في سهرة الألعاب = at the game night
• لعبة لوحية = a board game

Together, the sense is:

• There is a board game at the game night

Arabic can also use هناك for there is/there are, but it is not required here.

Yes, that is possible.

• هناك لعبة لوحية في سهرة الألعاب = There is a board game at the game night

Using هناك makes the existential meaning more explicit. But the original sentence without هناك is also completely normal.

Very roughly:

• في سهرة الألعاب لعبة لوحية = more concise, scene-setting
• هناك لعبة لوحية في سهرة الألعاب = more explicitly there is

In traditional grammar, this can be analyzed as a nominal sentence with:

• في سهرة الألعاب = a prepositional phrase functioning as the predicate placed first
• لعبة لوحية = the delayed subject

You may see this described as:

• خبر مقدّم = advanced predicate
• مبتدأ مؤخّر = delayed subject

This kind of order is very common when Arabic expresses existence or introduces something in a place.

A careful fully vowelled reading would be:

فِي سَهْرَةِ الْأَلْعَابِ لُعْبَةٌ لَوْحِيَّةٌ

Approximate pronunciation:

fī sahrati l-ʾalʿābi luʿbatun lawḥiyyatun

A few useful notes:

• سهرةِ is genitive after في
• in the iḍāfa, the ة of سهرة is pronounced as t
• الألعابِ is also genitive
• لعبةٌ and لوحيةٌ are nominative in this sentence

In normal pause, people often do not pronounce the final short vowels.

Because سهرة is the first word in an iḍāfa construction: سهرة الألعاب.

The taa marbuuṭa (ـة) is pronounced as -t when the word is followed grammatically, especially in careful reading and in constructions like iḍāfa.

So:

• alone in pause: سهرة ≈ sahra(h)
• in iḍāfa: سهرة الألعاب ≈ sahrat al-ʾalʿāb

This is very important for pronunciation.

Yes. Literally it is the evening gathering of games, but idiomatically it works well as game night.

This is a common pattern in Arabic: a literal X of Y phrase corresponds to a natural English compound noun.

So learners should not translate it too mechanically every time. The best English equivalent may be simpler than the literal structure.

To some extent, yes.

The original order:

• في سهرة الألعاب لعبة لوحية

is natural for introducing something in a setting.

You could also rearrange it in some contexts, for example:

• لعبة لوحية في سهرة الألعاب

but that feels less like a neutral there is sentence and more like a phrase or a different emphasis.

So the original order is especially good if the idea is:

• At the game night, there is a board game
• There is a board game at the game night

You would make both the noun and adjective definite:

• اللعبة اللوحية = the board game

So the sentence would become:

• في سهرة الألعاب اللعبة اللوحية

But note: that version may need more context, because with a definite noun after the prepositional phrase, it may sound less like a simple existential sentence and more like a sentence with a different discourse function.

For straightforward there is a board game, the indefinite لعبة لوحية is the most natural choice.