هذا يعني أن الجواب صحيح.

A word-by-word breakdown is:

• هذا = this
• يعني = means
• أن = that
• الجواب = the answer
• صحيح = correct / صحيح

So the structure is literally:

• This means that the answer is correct.

هذا is the masculine singular demonstrative pronoun meaning this.

In Arabic, it is often used very naturally at the start of a sentence to mean this or this thing. So هذا يعني... is a very common way to say:

• This means...
• That means... in the sense of referring to something just mentioned

Even though English distinguishes more clearly between this and that, Arabic often uses هذا in places where English might choose either one depending on context.

Because هذا is the masculine singular form of this.

• هذا = this for masculine nouns
• هذه = this for feminine nouns

In this sentence, هذا is being used on its own, almost like this thing or this matter, which is treated as masculine.

So هذا يعني... is the normal expression for this means...

يعني is a verb from the root ع-ن-ي and here it means he/it means.

In this sentence, it is best understood as:

• it means

Arabic verbs agree with the subject, and here the subject is هذا, which is grammatically masculine singular, so the verb is also masculine singular:

• هذا يعني = this means

أن means that and introduces a clause after the verb يعني.

So:

• هذا يعني = this means
• أن الجواب صحيح = that the answer is correct

Together:

• هذا يعني أن الجواب صحيح = This means that the answer is correct

In English, that is sometimes optional:

• This means the answer is correct
• This means that the answer is correct

In Arabic, using أن here is very normal and clear.

This part is a clause introduced by أن.

Inside it:

• الجواب = the subject of the clause in meaning
• صحيح = the predicate, meaning correct

So the clause means:

• the answer is correct

With أن, the whole clause becomes:

• that the answer is correct

In full formal grammar, أن affects the case of the noun after it, but in normal unvowelled writing you do not see that difference.

Because Arabic normally does not use a present-tense verb to be in sentences like this.

So:

• الجواب صحيح literally looks like the answer correct
• but it means the answer is correct

This is called a nominal sentence.

Compare:

• الجواب صحيح = The answer is correct
• الولد طويل = The boy is tall
• الكتاب جديد = The book is new

Arabic simply leaves out is in the present tense.

Because الجواب is the definite noun the answer, while صحيح is the predicate adjective correct.

In Arabic, when an adjective directly describes a noun inside a noun phrase, it usually matches definiteness:

• الجواب الصحيح = the correct answer

But that is not what we have here.

In الجواب صحيح, صحيح is not an adjective inside the noun phrase. It is the predicate of the sentence:

• الجواب صحيح = The answer is correct

So:

• الجواب الصحيح = the correct answer
• الجواب صحيح = the answer is correct

That is an important difference.

This is one of the most important distinctions for learners.

• الجواب صحيح = The answer is correct.

  • This is a full sentence.
  • صحيح is the predicate.

• الجواب الصحيح = the correct answer

  • This is just a noun phrase, not a full sentence by itself.
  • الصحيح is an adjective describing الجواب.

A quick way to see it:

• no الـ on صحيح here: probably is correct
• الـ on both words: probably the correct answer

No. الجواب is a common word for the answer, especially in formal or written Arabic.

Another common word is الإجابة.

Often:

• جواب can feel like answer / reply
• إجابة can also mean answer, especially for answers to questions, tests, and exercises

In many contexts, both are possible, but الجواب in your sentence is completely natural.

A careful pronunciation is:

hādhā yaʿnī anna l-jawāba ṣaḥīḥ

If you include full case endings in very formal reading, it would be:

hādhā yaʿnī anna l-jawāba ṣaḥīḥun

A few notes:

• هذا = hādhā
• يعني = yaʿnī
• أن is often pronounced anna here
• الجواب = al-jawāb
• صحيح = ṣaḥīḥ

Because in fully vocalized Arabic, this word here is أنَّ, pronounced anna.

In normal Arabic writing, short vowels are usually not written, so you see only أن. But grammatically in this sentence it is the particle أنَّ introducing a clause.

So learners often see:

• written: أن
• pronounced in full reading: anna

That is normal in Arabic script.

Yes. In English, both are natural:

• This means that the answer is correct.
• This means the answer is correct.

The Arabic sentence with أن explicitly includes the idea of that, but in English you may or may not say it.

In fully formal Classical or fully vowelled MSA, you could write it as:

هٰذا يَعني أنَّ الجوابَ صحيحٌ

Here is the grammar:

• هذا: subject of the sentence
• يعني: verb
• أنَّ: particle
• الجوابَ: the noun after أنَّ, so it is in the accusative
• صحيحٌ: the predicate of أنَّ, so it remains nominative

In ordinary modern writing, these short vowel endings are usually omitted, so learners normally just see:

هذا يعني أن الجواب صحيح

The whole sentence begins with a verb-like structure because of يعني, so overall you can think of it as containing a verbal clause:

• هذا يعني... = this means...

But inside it, الجواب صحيح is a nominal sentence:

• الجواب صحيح = the answer is correct

So the sentence contains both:

1. a main clause with يعني
2. a subordinate clause after أن
3. inside that clause, a present-tense to be idea expressed without a verb

That mixed structure is very common in Arabic.