Костюмер стоит рядом с реквизитом.

Костюмер is a costumer or wardrobe person — someone who works with costumes in a theater, film set, TV studio, etc.

So in this sentence, it means a person from the costume department, not just anyone wearing a costume.

Yes. Стоит is the 3rd person singular of стоять, meaning to stand.

So the sentence literally says that the costumer is standing next to the props.

Russian often uses position verbs very naturally:

• стоять = to stand
• сидеть = to sit
• лежать = to lie

If you wanted a more neutral idea like is located, Russian might use находится, but стоит is perfectly natural if the person is physically standing there.

When Russian says that something is next to something else, it usually uses the pattern:

рядом с + instrumental case

So:

• рядом с реквизитом = next to the props

You can say just рядом if the other thing is already understood from context:

• Он рядом. = He is nearby.

But if you name what something is next to, с is normally used.

Because рядом с requires the instrumental case.

The noun changes like this:

• nominative: реквизит
• instrumental: реквизитом

So:

• с реквизитом = with / next to the props in this structure

In this sentence, the ending -ом shows the instrumental singular.

Not really in the usual sense.

On its own, с often does mean with, but in рядом с the whole expression means next to / beside.

So it is better to understand рядом с as one unit:

• рядом с домом = next to the house
• рядом с актёром = next to the actor
• рядом с реквизитом = next to the props

Grammatically, реквизит is singular in Russian, but it often works like a collective or mass noun.

So even though the form is singular, the meaning can be something like:

• stage props
• the props
• prop equipment

That is why English often uses the plural props, even though Russian uses singular реквизит.

Yes. Russian word order is more flexible than English word order.

The sentence as given:

• Костюмер стоит рядом с реквизитом.

is a neutral, straightforward way to say it.

But you could also say:

• Рядом с реквизитом стоит костюмер.

This still means the same basic thing, but the emphasis shifts a little:

• the original starts with the costumer
• the second version highlights the place first

So the meaning stays similar, but the focus changes.

Because Russian does not use a present-tense form of to be the way English does.

English says:

• The costumer is standing...

Russian simply says:

• Костюмер стоит...

The verb стоит already carries the present-tense meaning, so no separate word for is is needed.

Yes, you could, but the nuance is a little different.

• рядом с реквизитом = right next to / beside the props
• около реквизита = near the props
• возле реквизита = near/by the props

Рядом с often feels a bit more specifically side by side or immediately next to something.

The stress is:

• костюме́р
• стои́т
• ря́дом
• с реквизи́том

So the full sentence is:

костюме́р стои́т ря́дом с реквизи́том

Pay special attention to:

• стоит: the stress is on the second syllable
• реквизитом: the stress stays on -зи́-

It can be either, depending on context.

Russian present tense often covers both:

• what is happening right now
• a more general description of a scene

So this sentence could mean:

• The costumer is standing next to the props right now or
• In the scene/picture, the costumer stands next to the props

Context tells you which one is intended.

Russian has no articles.

So:

• Костюмер can mean a costumer or the costumer
• реквизитом can mean props, the props, or some props, depending on context

English has to choose an article, but Russian leaves that to context.