V pokoji jsou různé rekvizity.

Because the preposition v normally requires the locative case when it means in a place.

• base form: pokoj = room
• after v: v pokoji = in the room

So this is a case change, not a different word.

Here v means in.

So:

• v pokoji = in the room

In Czech, short prepositions like v, na, do, z are very common, and each one usually goes with a particular case. In this sentence, v is used for location, so it takes the locative.

Jsou is the 3rd person plural form of být (to be).

It is used because rekvizity is plural:

• je = is
• jsou = are

So:

• V pokoji je rekvizita. = There is a prop in the room.
• V pokoji jsou rekvizity. = There are props in the room.

Rekvizity is the nominative plural form of rekvizita.

• singular: rekvizita
• plural: rekvizity

It is the subject of the sentence, so nominative is used.

Because různé is an adjective agreeing with rekvizity.

In Czech, adjectives match the noun in:

• gender
• number
• case

Here rekvizity is plural, and the adjective has to match it, so we get:

• různé rekvizity = various / different props

Yes. Czech has no articles like English a, an, or the.

So V pokoji jsou různé rekvizity can mean something like:

• There are various props in the room
• There are some various props in the room
• The room contains various props

The exact nuance depends on context.

Czech word order is much more flexible than English word order.

Starting with V pokoji puts the location first, which is very natural if you are setting the scene:

• V pokoji jsou různé rekvizity.

A different order is also possible, for example:

• Různé rekvizity jsou v pokoji.

But that sounds more like you are emphasizing the props. The original sentence is the most natural way to say There are various props in the room.

Yes. Czech often uses be sentences without a separate dummy subject like English there.

So English:

• There are various props in the room.

becomes Czech:

• V pokoji jsou různé rekvizity.

Czech does not need a word corresponding to English there in this structure.

It can often mean either, depending on context.

In this sentence, various is probably the most natural translation:

• různé rekvizity = various props

But in other contexts, různé can also mean different.

Approximately:

• pokoji ≈ PO-ko-yi

The j in Czech is pronounced like English y in yes.

So pokoji sounds roughly like pokoyi, with the stress on the first syllable: PO-ko-yi.

The singular version would be:

• V pokoji je různá rekvizita.

But in practice, Czech would more naturally say:

• V pokoji je rekvizita. = There is a prop in the room.

If you want to keep the idea of various/different, that naturally fits better with the plural.

Yes. That means:

• There are various props in that room
• or In that room, there are various props

Adding tom makes it more specific:

• v pokoji = in a/the room depending on context
• v tom pokoji = in that room

Note that tom pokoji is also in the locative case, because it follows v.