خواهرم گفت که در آن فروشگاه امروز برای این لباس ها تخفیف هست.

خواهرم is خواهر (sister) + -م (my), so it means my sister.

In Persian, possessive pronouns are very often attached directly to the noun as endings:

• خواهرم = my sister
• خواهرت = your sister
• خواهرش = his/her sister

You can also say خواهر من, but خواهرم is shorter and very common.

گفت means said.

It is the simple past form of گفتن (to say / to tell). Persian often uses the simple past where English also uses said:

• خواهرم گفت = my sister said

A native English speaker may wonder why it is not something like has said. Persian can express that too, but here the plain past is the normal, straightforward choice.

که here means that and introduces the reported clause:

• خواهرم گفت که ... = My sister said that ...

It connects the two parts of the sentence:

1. خواهرم گفت
2. در آن فروشگاه امروز برای این لباس ها تخفیف هست

In everyday Persian, که is sometimes omitted in speech if the meaning is still clear, but using it is completely normal and often clearer.

در آن فروشگاه means in that store / at that store.

Breakdown:

• در = in / at
• آن = that
• فروشگاه = store / shop

So آن is a demonstrative, like that in English.

A useful point: Persian does not use of-style linking or ezafe after این and آن in this structure. So you say:

• این لباس = this clothing item / this dress / this outfit
• آن فروشگاه = that store

not something with an extra connector between them.

Yes, امروز (today) can often move around in Persian.

Here it appears in:

• در آن فروشگاه امروز برای این لباس ها تخفیف هست

But Persian word order is fairly flexible, especially with time and place expressions. You could also hear:

• خواهرم گفت که امروز در آن فروشگاه برای این لباس ها تخفیف هست.
• خواهرم گفت که برای این لباس ها امروز در آن فروشگاه تخفیف هست.

These all mean roughly the same thing. The differences are mostly about emphasis and flow, not basic meaning.

Yes. برای literally means for, so:

• برای این لباس ها تخفیف هست
  = there is a discount for these clothes

In more natural English, we would often say these clothes are on sale or there is a discount on these clothes. Persian often uses برای in places where English might prefer on.

Depending on context, other expressions are also possible in Persian, such as:

• روی این لباس‌ها تخفیف هست
• این لباس‌ها تخفیف دارند

But برای این لباس ها تخفیف هست is understandable and natural.

ها is a very common plural ending in Persian.

• لباس = clothing item / garment / clothes (depending on context)
• لباس ها = clothes / garments

In modern writing, this is often written with a half-space:

• لباس‌ها

You may also see it written with a normal space:

• لباس ها

Both are common in informal typing, but لباس‌ها is usually considered the more standard spelling.

Because Persian demonstratives like این (this/these) and آن (that/those) normally come directly before the noun without ezafe.

So you say:

• این لباس‌ها = these clothes
• آن فروشگاه = that store

This is different from many noun combinations in Persian that do use ezafe, such as:

• لباسِ نو = new clothes / a new garment
• فروشگاهِ بزرگ = a big store

So one very useful rule is:

• demonstrative + noun → usually no ezafe
• noun + adjective → usually with ezafe

Yes. هست and است both mean is.

In this sentence:

• تخفیف هست = there is a discount

A few important notes:

1. هست is very common in speech and informal usage.
2. است is more formal in writing.
3. In a sentence like this, هست often has an existential feeling:
   
   • there exists / there is

So تخفیف هست feels a lot like there is a discount, not just the discount is.

Yes, it is normal and easy to understand.

Some other common ways to express similar ideas are:

• تخفیف هست = there is a discount
• تخفیف داره = it has a discount / it’s discounted
• در تخفیفه = it is on sale
• شامل تخفیف است = it includes a discount / is subject to a discount

So the sentence is perfectly fine, but Persian offers several natural alternatives depending on style and context.

A helpful pronunciation guide is:

khâharam goft ke dar ân forooshgâh emrooz barâye in lebâs-hâ takhfif hast

A few pronunciation tips:

• خواهرم = khâ-ha-ram
• فروشگاه = fo-roosh-gâh
• تخفیف = takh-fif
• هست is often pronounced very lightly in fast speech

If you want the literal structure, it is roughly:

My-sister said that in that store today for these clothes discount exists.

That literal view can help you see how the Persian sentence is built.