पड़ोसी घर में है।

है is the present-tense form of to be for a singular third-person subject, so it works like is in English.

So the pattern is:

पड़ोसी + घर में + है
neighbor + at home / in the house + is

Hindi often puts the verb at the end of the sentence.

में is a postposition meaning in.

So:

• घर = house / home
• घर में = in the house / at home

It is called a postposition because, unlike English in, it comes after the noun, not before it.

In Hindi, words like में, पर, से, and को normally come after the noun or pronoun they relate to.

So Hindi says:

• घर में = in the house
• स्कूल में = in school
• मेज़ पर = on the table

This is one of the biggest structural differences from English.

Hindi does not normally use articles like English a, an, and the.

So पड़ोसी can mean:

• a neighbor
• the neighbor
• sometimes just neighbor

And घर can mean:

• a house
• the house
• home

The exact meaning depends on context.

It can mean either, depending on context.

In many everyday situations, घर में है is understood as is at home.
But literally, it is also is in the house.

Hindi often allows this kind of overlap, just as English sometimes does.

पड़ोसी is often used for either a male or female neighbor.

So it can mean:

• male neighbor
• female neighbor

This sentence does not show the gender clearly, because है does not change for masculine vs. feminine in the present tense.

If more words were added, the gender might become clearer from context or agreement.

Hindi usually follows a Subject + Other information + Verb pattern, with the verb often at the end.

So:

• English: The neighbor is at home.
• Hindi: पड़ोसी घर में है।

A good way to think of it is:

Neighbor home in is.

That sounds strange in English, but it is normal Hindi structure.

है is used for a singular third-person subject.
हैं is used for:

• plural subjects
• or respectful singular subjects

So:

• पड़ोसी घर में है। = The neighbor is at home.
• पड़ोसी घर में हैं। = The neighbors are at home.
  or, in some contexts, a respectful singular The neighbor is at home.

Without extra context, है is the normal choice for one neighbor.

A rough pronunciation is puh-RO-see.

A couple of important points:

• ड़ is a flipped or tapped sound, somewhat like a soft retroflex r/d sound.
• The stress is not as strong as in English, but the middle syllable is often the most noticeable to English speakers.

Also:

• प = p
• ड़ो = roughly ro/do with a flap sound
• सी = see

में is roughly mein or mayn, with a nasal sound at the end.

Important points:

• The े gives an e/ay-type vowel.
• The ं adds nasalization, so the vowel is nasalized rather than ending with a full n sound.

So it is not exactly men in English.
It is closer to mẽ.

Yes. घर पर है is also very common and often means is at home.

There is a slight difference in feel:

• घर में = in the house / at home
• घर पर = at home

In everyday speech, both can work, but पर often feels a bit more like location in the sense of at, while में is more literally in.

You would usually change only the verb:

• पड़ोसी घर में है। = The neighbor is at home.
• पड़ोसी घर में हैं। = The neighbors are at home.

Notice that पड़ोसी often stays the same in singular and plural, so the verb helps show the difference.

Yes, it is completely natural.

Hindi often leaves out information that English would make more explicit, especially articles and sometimes possessive words, if the context is already clear.

So पड़ोसी घर में है। can naturally mean something like:

• The neighbor is at home.
• Our neighbor is at home.
• The neighbor is in the house.

The situation usually tells you which one is intended.