تسرب الهواء قرب النافذة والتدفئة المركزية.

It can be either, because normal Arabic writing usually leaves out short vowels.

There are two likely readings:

• تسرَّبَ = a verb: leaked / seeped
• تسرُّب = a noun (maṣdar): leakage

So the string تسرب الهواء could be read as:

• تسرَّبَ الهواءُ = the air leaked
• تسرُّبُ الهواءِ = air leakage / the leakage of air

In a maintenance or building-context phrase, the noun reading is often very natural.

If read as a noun, تسرُّبُ الهواءِ is basically a noun phrase meaning the leakage of air or air leakage.

This is a common Arabic pattern:

• تسرُّبُ = leakage
• الهواءِ = of the air

So it works like an iḍāfa-like relationship: the second noun specifies what the leakage involves.

With full vowels, it would be:

• تسرُّبُ الهواءِ

That final ـِ on الهواء shows it is in the genitive.

Because Arabic often uses الـ with nouns that English might leave more general.

So الهواء means the air, but in context it can still sound natural where English says just air.

For example:

• تسرُّبُ الهواءِ = literally the leakage of the air
• but naturally: air leakage

This is normal Arabic usage, especially with things that are understood in the situation, like air, water, heat, etc.

قرب means near or close to.

In Arabic, it often functions like an adverbial noun / ظرف rather than a simple one-word preposition in the English sense.

So:

• قربَ النافذةِ = near the window

Grammatically:

• قربَ is usually in the accusative as an adverb of place
• the noun after it, like النافذةِ, is in the genitive

That is why, when fully vowelled, you get:

• قربَ النافذةِ

Because Arabic, like English, can let one governing word apply to two coordinated nouns.

So:

• قرب النافذة والتدفئة المركزية

means:

• near the window and the central heating

You do not have to repeat قرب.

This is similar to English:

• near the window and the radiator

not necessarily:

• near the window and near the radiator

If you want extra clarity or emphasis, you could repeat it, but it is not required.

Because it is describing التدفئة, and التدفئة is a feminine noun.

In Arabic, adjectives must agree with the noun they describe in:

• gender
• number
• definiteness
• case

So:

• التدفئة = feminine
• therefore the adjective is المركزية = feminine form of central

Compare:

• نظام مركزي = a central system
• تدفئة مركزية = central heating

There are two main possibilities, depending on whether تسرب is read as a noun or a verb.

1. Noun reading:

• تسرُّبُ الهواءِ قربَ النافذةِ والتدفئةِ المركزيةِ

This gives the sense of air leakage near the window and the central heating.

2. Verb reading:

• تسرَّبَ الهواءُ قربَ النافذةِ والتدفئةِ المركزيةِ

This gives the sense of the air leaked near the window and the central heating.

In everyday speech and in unvowelled writing, you normally do not see these endings written out.

It could easily be understood as a short note, heading, or report item, not necessarily a fully expanded sentence.

Arabic often uses compact noun phrases in practical contexts such as:

• maintenance reports
• complaint lists
• building inspection notes
• headlines

So تسرُّب الهواء قرب النافذة والتدفئة المركزية can work like:

• Air leakage near the window and the central heating

If you wanted a more explicitly sentence-like form, you might say something like:

• يوجد تسرب للهواء قرب النافذة والتدفئة المركزية
• There is air leakage near the window and the central heating

Yes, a little.

The main ambiguity is not the general meaning, but the grammatical reading:

1. تسرُّب as a noun = leakage
2. تسرَّبَ as a verb = leaked

There is also a small structural ambiguity in قرب النافذة والتدفئة المركزية:

• it most naturally means near the window and the central heating
• but depending on context, a reader may momentarily wonder how the last part connects

If you want to be clearer, Arabic can make the structure more explicit, for example:

• قرب النافذة وبالقرب من التدفئة المركزية
• near the window and near the central heating

or, if you mean the leak comes from those places:

• من النافذة ومن التدفئة المركزية

It comes from the root:

• س ر ب

The verb is:

• تسرّب = to seep, leak, infiltrate

This is a Form V verb in Arabic.

Its verbal noun (maṣdar) is:

• تسرُّب = leakage, seepage, infiltration

So this sentence is useful because it shows a very common Arabic ambiguity: the same unvowelled spelling can represent both:

• تسرَّبَ = verb
• تسرُّب = noun

Yes. The best choice depends on exactly what you want to emphasize.

If you want a clear report-style sentence:

• يوجد تسرب للهواء قرب النافذة والتدفئة المركزية.
• There is air leakage near the window and the central heating.

If you want a compact heading or note:

• تسرب الهواء قرب النافذة والتدفئة المركزية
• short, concise, and very plausible in a list

If you want to stress two separate locations more clearly:

• يوجد تسرب للهواء قرب النافذة وبالقرب من التدفئة المركزية.

So the original wording is understandable, but Arabic often offers several equally natural ways to package the idea depending on style and context.