مسحوق الغسيل والمبيض بالكيس.

A common Levantine-style pronunciation would be:

masḥūʔ il-ghasīl wil-mbayyeḍ bil-kīs

A few notes:

• مسحوق may sound like masḥūʔ in many urban Levantine accents, because ق often becomes a glottal stop.
• الـ is usually pronounced il- or el- in Levantine, not al-.
• و attaches to the next word, so والمبيض is pronounced together: wil-mbayyeḍ.
• بالكيس is also one unit in pronunciation: bil-kīs.

Because Arabic, including Levantine, often allows verb-less sentences, especially in simple statements, labels, lists, or descriptions.

So مسحوق الغسيل والمبيض بالكيس can work like:

• Laundry detergent and bleach are in the bag
• or a label-like phrase such as Laundry detergent and bleach — in the bag

Arabic often leaves out is/are in the present tense. English requires it, but Arabic usually does not.

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

It literally works like:

• مسحوق = powder
• الغسيل = the washing / the laundry

Together: washing powder or laundry detergent

In an iḍāfa:

• the first noun usually does not take الـ
• the second noun can take الـ

So:

• مسحوق الغسيل = laundry powder / washing powder
• not المسحوق الغسيل

الغسيل comes from the idea of washing or laundry.

In this phrase, مسحوق الغسيل, it refers to laundry or washing, so the whole expression means:

• laundry detergent
• washing powder

This is a very common way Arabic forms product names: noun + noun.

Because in Arabic, the conjunction و meaning and is written attached to the following word.

So:

• والمبيض = and the bleach

This is completely normal. Arabic often attaches short particles like و, ب, ل, and ك directly to the next word.

المبيض means the bleach or more literally the whitening agent.

It comes from the root related to white: ب ي ض.

So the word has the sense of something that makes things white or bleaches them. In everyday use, it simply refers to bleach.

بالكيس is made of:

• بـ = in / with / by
• الكيس = the bag, the sack, the packet

So بالكيس often means:

• in the bag
• in the packet
• sometimes by the bag, depending on context

In the sentence you gave, it is understood as the location or packaging: in the bag / packet.

That is a very common question.

In Levantine, بـ is used very broadly and can cover meanings that English might separate into in, with, or by.

So بالكيس can sound natural in colloquial speech, especially in short product-style expressions.

That said:

• في الكيس is also possible and may sound more explicitly locational: in the bag
• بالكيس can sound a little more like bagged / in the packet / with the bag

So both can make sense, but بـ is extremely common in Levantine.

Not necessarily.

كيس can mean several related things, depending on context:

• bag
• sack
• packet
• pouch
• plastic bag

So in a product or household context, بالكيس might refer to a bag, packet, or pouch, not only a large bag.

Arabic uses definiteness differently from English.

In context, المبيض can refer to:

• a known item
• a category understood in the situation
• a product listed in a specific setting

So المبيض does not always feel as strongly definite as the bleach does in English. In many contexts, Arabic naturally uses الـ where English would use no article.

It is understandable in Levantine, but it sounds a bit like written Arabic, a label, or a list item, rather than a full casual spoken sentence.

In everyday speech, a Levantine speaker might say something a little fuller, such as:

• مسحوق الغسيل والمبيّض بالكيس
• مسحوق الغسيل والمبيّض جوّا الكيس
• مسحوق الغسيل والمبيّض في الكيس

So the original is fine, but it feels a little compressed and label-like.

Because normal Arabic writing usually leaves out short vowels, and Levantine speech does not use the full case-ending system of formal Arabic.

So you see:

• مسحوق
• الغسيل
• والمبيض
• بالكيس

without the full set of written vowel marks.

This is normal in everyday Arabic writing, and especially normal if you are learning Levantine rather than formal written Arabic.

Yes, absolutely.

Arabic often uses short noun phrases in signs, labels, notes, packing lists, and store language.

So مسحوق الغسيل والمبيض بالكيس may function like:

• Laundry detergent and bleach — in the bag
• The bag contains detergent and bleach
• a checklist-style note

That is why it may feel shorter or less explicit than the equivalent English sentence.