دي طريقة سهلة.

دي means this.

In this sentence, دي points to طريقة and the whole sentence means This is an easy way/method.

Because طريقة is grammatically feminine.

In Egyptian Arabic:

• ده = this for masculine singular nouns
• دي = this for feminine singular nouns

So:

• ده كتاب = This is a book
• دي طريقة = This is a way/method

Yes, طريقة is feminine.

One common clue is the ending ة in writing. That often marks a feminine noun in Arabic. Because طريقة is feminine, other words connected to it also show feminine agreement.

That is why you get:

• دي and not ده
• سهلة and not سهل

Because in Arabic, adjectives usually come after the noun they describe.

So:

• طريقة سهلة = literally way easy
• natural English = an easy way

This is the normal word order in both Egyptian Arabic and Standard Arabic.

Because adjectives agree with the noun in gender.

Since طريقة is feminine singular, the adjective must also be feminine singular:

• سهل = easy, masculine
• سهلة = easy, feminine

So:

• كتاب سهل = an easy book
• طريقة سهلة = an easy way

It is not said explicitly.

In Arabic, present-tense sentences like this usually do not use a separate word for is/are.

So دي طريقة سهلة is literally something like:

• this easy way

But the real meaning is:

• This is an easy way

This is completely normal Arabic grammar.

Because طريقة سهلة here is indefinite: an easy way.

So:

• طريقة سهلة = an easy way
• الطريقة السهلة = the easy way

In دي طريقة سهلة, the structure is:

• دي = this
• طريقة سهلة = an easy way

So the whole thing is This is an easy way.

If you changed it to الطريقة دي سهلة, that would be more like This method is easy.

Yes, you can.

The difference is mainly in structure and emphasis:

• دي طريقة سهلة = This is an easy way
• الطريقة دي سهلة = This way/method is easy

In the first sentence, دي stands more on its own as this. In the second, الطريقة دي works together as this method.

Both are natural, but they are not built the same way.

A simple pronunciation guide is:

dee ta-REE-ʔa SAH-la

A few notes:

• دي sounds like dee
• طريقة has stress on the middle syllable: ta-REE-ʔa
• the sound written here as ʔ is a quick throat stop, like the break in uh-oh
• سهلة sounds like SAH-la

If you say it more simply as dee ta-ree-a sah-la, people will still usually understand you.

This sentence is specifically Egyptian Arabic because of دي.

In Standard Arabic, you would normally say:

• هذه طريقة سهلة

The rest of the sentence is very close in both varieties:

• طريقة = way/method
• سهلة = easy

So the most clearly Egyptian part here is دي.