इसका मतलब सही है।

इसका means of this, its, or sometimes his/her/that thing's, depending on context.

It is made from:

• यह = this / it
• oblique stem इस-
• का = possessive marker meaning of

So:

• यह → direct form
• इस → oblique form
• इसका = of this / its

Hindi pronouns often change form before postpositions, so you do not say यहका.

Hindi usually follows Subject–Object–Verb order, and in sentences with to be, the verb often comes at the end.

A literal breakdown is:

• इसका = its / of this
• मतलब = meaning
• सही = correct
• है = is

So the structure is basically:

its meaning correct is

That is normal Hindi word order. English puts is earlier, but Hindi usually places है at the end.

मतलब is a noun here, meaning meaning.

So इसका मतलब means:

• its meaning
• the meaning of this

In other contexts, मतलब can also mean things like:

• point
• sense
• intention
• motive

But in this sentence it is simply the noun meaning.

सही is an adjective meaning correct, right, or accurate.

In this sentence, it describes मतलब:

• मतलब सही है = the meaning is correct

Here सही works as a predicate adjective, just like correct in English The meaning is correct.

Also, सही is one of those adjectives that usually does not change form for gender or number in this kind of usage.

Because सही is commonly used as an indeclinable adjective in modern Hindi, especially in everyday speech. That means it often stays the same no matter whether the noun is masculine, feminine, singular, or plural.

So you get things like:

• जवाब सही है = The answer is correct.
• बात सही है = The point/statement is correct.
• किताब सही है = The book is fine/correct.

By contrast, some adjectives do change, such as अच्छा / अच्छी / अच्छे.

है is the present tense form of the verb to be for a singular subject.

So in this sentence it means is:

• मतलब सही है = the meaning is correct

Some useful related forms are:

• है = is
• हूँ = am
• हो = are
• हैं = are

Since मतलब is singular, है is the correct form here.

That depends on what is being referred to.

• इसका = of this / its / this one's
• उसका = of that / its / that one's

Hindi distinguishes between something relatively nearer or more immediate (यह / इस) and something farther or less immediate (वह / उस).

So the speaker uses इसका when the referent is understood as this one, or the thing currently being discussed more directly.

Yes, you can. अर्थ also means meaning.

The difference is mostly in style:

• मतलब is very common and conversational.
• अर्थ is a bit more formal, literary, or technical.

So:

• इसका मतलब सही है = natural, everyday
• इसका अर्थ सही है = also correct, but more formal

Yes, it is grammatical and understandable.

It sounds most natural in a context where you are evaluating whether the meaning/interpretation itself is correct.

For example, if someone explains the meaning of a sentence, you might say:

• हाँ, इसका मतलब सही है। = Yes, its meaning is correct.

Depending on context, native speakers might also use alternatives such as:

• इसका मतलब ठीक है।
• इसका अर्थ सही है।
• तुमने इसका मतलब सही समझा। = You understood its meaning correctly.

So your sentence is fine, but the most natural wording can vary with the situation.

Both can sometimes be translated as correct or right, but they are not always identical.

• सही usually means correct, accurate, right
• ठीक often means fine, okay, proper, all right, and sometimes correct

In this sentence:

• इसका मतलब सही है emphasizes correctness of the meaning.
• इसका मतलब ठीक है can also work, but may sound a little more like the meaning is fine/acceptable.

So सही is the stronger choice if you want to stress accuracy.

Yes. Hindi pronouns are highly context-dependent.

इसका can refer to:

• of this
• its
• sometimes his or her, if the person is being referred to as this one in the discourse

Hindi often does not force you to distinguish as clearly as English does between this, it, he, and she. The exact meaning comes from context.

So learners should think of इसका not as one fixed English word, but as a form meaning roughly of this / of it / its, with the exact translation depending on the situation.