यह एसएमएस है।

यह means this. It points to something near the speaker.

So यह एसएमएस है literally has the structure this SMS is, which English expresses as This is an SMS.

Learners are often taught यह as yah or yeh. In real speech, it is very commonly heard closer to yeh.

So if you say it roughly like yeh, you will sound natural in many situations.

That is a very common spoken Hindi feature.

• Standard written Hindi: यह for singular this
• Everyday speech: many speakers say ये where the textbook form would be यह

So यह एसएमएस है is the standard written version, but in speech you may hear ये एसएमएस है.

One thing to remember: in standard grammar, ये can also mean these, so यह is the safer form for learners to write when they mean singular this.

है is the present-tense form of to be, so here it means is.

It links यह and एसएमएस:

• यह = this
• एसएमएस = SMS
• है = is

So the sentence means This is an SMS.

Hindi usually puts the main verb at the end of the sentence.

That is why the order is:

• यह = this
• एसएमएस = SMS
• है = is

English says This is an SMS, but Hindi prefers This SMS is in its basic word order.

Hindi does not normally use articles the way English does.

So यह एसएमएस है can naturally mean This is an SMS even though there is no separate word for an.

If you want to make the idea of one/a more explicit, you can say:

यह एक एसएमएस है।

Here एक literally means one, but it can also work like a/an.

Hindi often writes English abbreviations in Devanagari by spelling out the names of the letters.

So:

• एस = S
• एम = M
• एस = S

That gives एसएमएस.

In informal writing, especially online or on phones, you may also simply see SMS written in the Latin alphabet.

Borrowed nouns in Hindi often get treated as masculine or feminine in actual usage, but with modern technical words there can be variation.

In this sentence, it does not really matter, because nothing here changes to show the gender:

• यह stays यह
• है stays है

So for this sentence, you do not need to worry about gender.

Usually, without extra context, learners should understand it as This is an SMS or This is an SMS message.

Hindi does not have articles like a and the, so context decides a lot. In the right situation, it could refer to a specific SMS, but the most basic reading is simply identifying something as an SMS.

। is the traditional Hindi full stop. It is called the danda.

It works like a period in English. So:

• यह एसएमएस है। = standard Hindi punctuation

In modern typing, texting, and online writing, many people also use a regular English period .

Add नहीं before है:

यह एसएमएस नहीं है।

That means This is not an SMS.

A useful pattern to remember is:

[thing] + नहीं है = is not

Add क्या at the beginning:

क्या यह एसएमएस है?

That means Is this an SMS?

This is a very common Hindi pattern for yes/no questions:

क्या + sentence

So:

• statement: यह एसएमएस है।
• question: क्या यह एसएमएस है?