دورة الغسيل رح تبلش حوالي الخمسة.

Because دورة الغسيل is a noun construction called iḍāfa (the construct state).

• دورة = cycle
• الغسيل = the washing / the laundry

In this structure, the first noun usually does not take ال. The whole phrase becomes definite because the second noun is definite.

So دورة الغسيل means the washing cycle or the wash cycle.
If you said الدورة الغسيل, that would sound wrong.

رح is a very common Levantine future marker. It means something like will or going to.

So:

• تبلش = starts
• رح تبلش = will start / is going to start

It does not change for person or gender. You just put it before the present/imperfect verb.

In more formal Arabic, you would usually see something like سـ or سوف instead.

It can mean either, depending on context.

In Levantine Arabic, تبلش can be:

• you start (masculine singular)
• she starts
• it starts for a feminine noun

Here, the subject is دورة الغسيل, and دورة is a feminine singular noun. So تبلش means it starts.

That is very normal in Arabic: the same verb form can match more than one English subject.

Because دورة is grammatically feminine.

Even though English says the cycle and does not treat it as feminine, Arabic nouns have grammatical gender. Since دورة is feminine, the verb has to agree with it:

• دورة → feminine singular
• تبلش → feminine singular verb form

So the grammar is based on the noun دورة, not on the English idea of it.

بلّش is mainly a colloquial Levantine verb meaning to start / begin. It is extremely common in everyday speech.

The more standard/formal equivalent is بدأ.

So:

• Levantine everyday speech: بلّش
• Standard Arabic: بدأ

A learner should definitely know بلّش, because you will hear it a lot in real conversation.

حوالي means around, about, or approximately.

It comes before the time expression it modifies:

• حوالي الخمسة = around five

So it works very much like English around five.

You can use حوالي with time, numbers, quantities, and other approximate expressions.

In time expressions, Levantine Arabic often treats the hour as a definite expression, so الخمسة can mean five o’clock.

So here:

• الخمسة = five o’clock
• حوالي الخمسة = around five o’clock

This does not mean that numbers normally take ال.
Outside of telling time, خمسة just means five.

So this is a special usage connected with clock time.

Yes, you can think of it as being understood from context.

Arabic often leaves out words that are obvious. Since the sentence is talking about a starting time, حوالي الخمسة is naturally understood as around five o’clock.

So even without explicitly saying الساعة, the meaning is clear.

This kind of omission is very common in spoken Arabic.

A rough pronunciation would be:

dawret il-ghaseel raḥ tiballesh ḥawali l-khamse

A few notes:

• دورة → daw-ret
• الغسيل → il-gha-seel
• رح → raḥ
• تبلش → ti-bal-lesh
• حوالي → ḥa-wa-li
• الخمسة → l-kham-se

Exact pronunciation can vary by country, city, and speaker, but this is a good general Levantine approximation.