الفرق واضح.

Because Arabic normally does not use a present-tense copula in simple sentences like this.

So الفرق واضح literally looks like the difference clear, but it means the difference is clear.

This is called a nominal sentence in Arabic:

• الفرق = the subject
• واضح = the predicate / description

If you wanted other time frames, Arabic would use extra words:

• كان الفرق واضحًا = the difference was clear
• سيكون الفرق واضحًا = the difference will be clear

Because here واضح is the predicate of the sentence, not part of one noun phrase.

So:

• الفرق واضح = The difference is clear
• الفرق الواضح = the clear difference

That is a very important distinction.

In the sentence الفرق واضح:

• الفرق is definite: the difference
• واضح is indefinite in form: clear

This is completely normal in Arabic for a basic subject + predicate sentence.

It is a nominal sentence (جملة اسمية).

That means it starts with a noun, not a verb.

Its two main parts are:

• المبتدأ: الفرق
• الخبر: واضح

In beginner-friendly terms:

• الفرق = what we are talking about
• واضح = what we say about it

So the structure is:

[definite noun] + [description/information]

الـ is the Arabic definite article, equivalent to the in English.

So:

• فرق = a difference / difference
• الفرق = the difference

In this sentence, الفرق refers to a specific difference already understood from context, or to the difference as a known thing.

A careful full pronunciation with case endings is:

al-farqu wāḍiḥun

But in normal pause pronunciation, especially in everyday reading and speech, it is often heard more like:

al-farq wāḍiḥ

A few notes:

• The الـ in الفرق is pronounced fully here, because ف is a moon letter, not a sun letter.
• ق is a deep q sound, not an English k.
• ض in واضح is an emphatic consonant.
• ح is a breathy ḥ sound, stronger than ordinary h.

Those are case endings and short vowels, which are often omitted in normal Arabic writing.

Fully vocalized, the sentence is:

الفرقُ واضحٌ

That shows:

• الفرقُ = nominative subject
• واضحٌ = nominative predicate

In ordinary writing, Arabic usually leaves those endings out:

• الفرق واضح

So both represent the same sentence; one is just more fully marked.

In a basic nominal sentence, both the subject (المبتدأ) and the predicate (الخبر) are normally in the nominative case.

So in full grammatical form:

• الفرقُ = nominative
• واضحٌ = nominative

That is why the fully vowelled version is الفرقُ واضحٌ.

Yes, in this kind of sentence the predicate usually agrees in gender and number in a straightforward case like this.

Here:

• الفرق is masculine singular
• so واضح is also masculine singular

If the subject changed, the adjective/predicate form could change too. For example:

• الفكرة واضحة = the idea is clear

Here الفكرة is feminine, so واضحة is feminine too.

Not if you want the same simple meaning.

The normal sentence is:

• الفرق واضح = the difference is clear

But:

• واضح الفرق is not the usual neutral way to say that in Modern Standard Arabic

Also compare:

• الفرق الواضح = the clear difference

So word order matters. For a simple statement, الفرق واضح is the standard form.

It is originally an adjective, meaning clear.

But in this sentence it functions as the predicate of the nominal sentence:

• الفرق = subject
• واضح = predicate

So it is still adjective-like in meaning, but grammatically it is doing the job of telling us something about the subject.

Yes, it can help a lot.

• الفرق comes from the root ف ر ق, which has meanings related to separating, distinguishing, or difference
• واضح comes from the root و ض ح, which has meanings related to clarity or being clear

So learning the roots helps you connect them to other words:

• فرق = difference
• يفرّق = he distinguishes / separates
• وضوح = clarity
• يوضح = he clarifies / explains

That makes the sentence easier to remember as part of a bigger vocabulary family.