رسوم الاشتراك أكثر من مصروف البقالة.

This is a very common feature of Arabic.

In the present tense, Arabic often uses a nominal sentence with no written or spoken verb for to be.

So:

• رسوم الاشتراك = the subscription fees
• أكثر من = more than
• مصروف البقالة = the grocery expense / grocery spending

Put together, the sentence means:

• Subscription fees are more than grocery expenses

The are is understood automatically.

رسوم is the plural of رسم in the sense of fee / charge.

So:

• رسم = a fee
• رسوم = fees / charges

Arabic often uses a plural where English might use a singular mass noun or a category word. So رسوم الاشتراك naturally means subscription fees or subscription charges.

Even if English might say the subscription cost, Arabic may still prefer a plural form like رسوم depending on the context.

This is because رسوم الاشتراك is an iḍāfa construction, often called a genitive construction or noun-noun phrase.

In an iḍāfa:

• the first noun comes without الـ
• the second noun tells you what the first noun belongs to or is associated with

So:

• رسوم الاشتراك = subscription fees
• literally: fees of the subscription

Important rule:

• the first noun in iḍāfa usually does not take الـ
• the whole phrase can still be definite if the second noun is definite

Since الاشتراك is definite, رسوم الاشتراك is understood as a definite phrase.

اشتراك means subscription, participation, or joining, depending on context.

Here, because it follows رسوم, it clearly means:

• الاشتراك = the subscription
• رسوم الاشتراك = subscription fees

So this is not about general participation here; it is specifically about the fee charged for subscribing.

أكثر من is the standard way to say more than.

• أكثر = more / greater
• من = than

So:

• أكثر من مصروف البقالة = more than the grocery expense

This is a very common comparison pattern in Arabic:

• أكبر من = bigger than
• أصغر من = smaller than
• أكثر من = more than
• أقل من = less than

In this sentence, أكثر is comparing رسوم الاشتراك with مصروف البقالة.

Good question. Arabic has several words for expense(s):

• مصروف
• مصاريف
• نفقات

All can relate to spending or expenses, but they are not always used in exactly the same way.

Here, مصروف is being used as a noun meaning something like:

• expense
• spending
• amount spent

So مصروف البقالة means something like:

• grocery expense
• grocery spending
• the amount spent on groceries

Other versions are also possible in Arabic, such as:

• مصاريف البقالة
• نفقات البقالة

But مصروف البقالة is understandable and natural as a category of spending.

Literally, البقالة often means the grocery store / grocery shop.

But in phrases like مصروف البقالة, it can be understood more broadly as:

• grocery spending
• money spent at the grocery store
• the grocery bill

So even though the literal noun is related to the shop, the phrase naturally refers to the expense connected with groceries.

This kind of meaning extension is very normal in Arabic.

The sentence contains two important noun phrases:

• رسوم الاشتراك
• مصروف البقالة

Both are iḍāfa phrases.

Because the second noun in each phrase has الـ:

• الاشتراك
• البقالة

the whole phrase is definite.

So:

• رسوم الاشتراك = the subscription fees
• مصروف البقالة = the grocery expense / the grocery spending

Even though the first word in each phrase does not have الـ, the full expression is still definite.

A simple pronunciation guide is:

rusūm al-ishtirāk akthar min maṣrūf al-baqqālah

A few notes:

• رسوم = rusūm
• الاشتراك = al-ishtirāk
• أكثر = akthar
• مصروف = maṣrūf
• البقالة = al-baqqālah

Also, بقالة is usually pronounced with a doubled q sound: baqqālah.

In fully inflected MSA, it would be:

رُسُومُ الِاشْتِرَاكِ أَكْثَرُ مِنْ مَصْرُوفِ الْبَقَّالَةِ

Grammatically:

• رُسُومُ: subject of the nominal sentence, so it is nominative
• الاشتراكِ: second term of iḍāfa, so it is genitive
• أكثرُ: predicate, so it is nominative
• مصروفِ: after من, so it is genitive
• البقالةِ: second term of iḍāfa, so it is genitive

In everyday reading and speech, these endings are often not pronounced.

Yes. You could also say:

مصروف البقالة أقل من رسوم الاشتراك.

That means:

• The grocery expense is less than the subscription fees

This expresses the same comparison from the other side.

So Arabic lets you choose which item you want to present first, just as English does.

أكثر is the best choice if you are comparing amount or quantity.

That fits this sentence well, because both sides refer to money/cost.

Other comparatives would change the meaning:

• أكبر من = bigger than
• أعلى من = higher than
• أكثر من = more than

For money, أكثر من is very natural.
You might also hear أعلى من in some contexts involving prices or rates, but أكثر من works very well here for simple comparison of spending amounts.