יש יותר מדי רעש במשרד עכשיו.

יש means there is / there are or there exists.

In this sentence, יש יותר מדי רעש literally means there is too much noise.

A key point for English speakers: Hebrew often uses יש where English uses there is/are.

Because יש already does that job.

In English, we say There is too much noise.
In Hebrew, יש covers the existential idea by itself, so you do not need an extra word for there.

So:

• יש רעש = There is noise
• יש יותר מדי רעש = There is too much noise

יותר מדי means too much or too many.

Literally:

• יותר = more
• מדי = part of the fixed expression meaning too / excessively

Together, יותר מדי means more than is desirable, i.e. too much.

Examples:

• יותר מדי רעש = too much noise
• יותר מדי אנשים = too many people

So Hebrew uses the same phrase for both countable and uncountable nouns, while English changes between much and many.

Because רעש (noise) is usually treated like an uncountable noun here, just like English noise.

So:

• יותר מדי רעש = too much noise

You would not normally say the equivalent of too many noises unless you meant separate individual sounds in a special context.

במשרד means in the office.

It is made of:

• ב־ = in
• משרד = office

When ב־ is attached to a noun with the, the ה of the is absorbed, so:

• ב + המשרד → במשרד

This is very common in Hebrew.

Compare:

• בבית = in the house / at home
• בכיתה = in the classroom
• במשרד = in the office

Because Hebrew often combines prepositions with the into one word.

Here:

• ב־ = in
• ה־ = the
• משרד = office

Together they become במשרד.

So even though you do not see a separate word for the, it is still there grammatically.

Yes, Hebrew word order is somewhat flexible.

In this sentence:

• יש יותר מדי רעש במשרד עכשיו
• literally: There is too much noise in the office now

Putting עכשיו at the end sounds natural and neutral.

You could also hear:

• עכשיו יש יותר מדי רעש במשרד

That puts more emphasis on now.

So the original order is normal, but Hebrew can move time words around more freely than English.

Very little.

• יש does not change for singular vs. plural in everyday modern Hebrew existential sentences.
• יותר מדי also stays the same.
• רעש is just the noun.

So even if the noun changes, יש often stays the same:

• יש רעש = there is noise
• יש בעיות = there are problems

That is convenient for learners.

A common pronunciation is:

yesh yoter midai ra'ash ba-misrad akhshav

A few notes:

• יש = yesh
• יותר מדי = yoter midai
• רעש is often pronounced roughly ra'ash
• במשרד = ba-misrad
• עכשיו = akhshav or sometimes closer to akhshav/akhsav depending on speaker

You do not need perfect guttural sounds to be understood.

You would usually use אין as the negative of יש:

אין יותר מדי רעש במשרד עכשיו.

So:

• יש = there is / there are
• אין = there isn’t / there aren’t

This is one of the most useful basic pairs in Hebrew.

Sometimes Hebrew can express similar ideas in other ways, but with this exact meaning, יש is the most natural and standard choice.

For a beginner, the safest pattern is:

• יש + noun phrase + place/time

So this sentence is a very good model: יש יותר מדי רעש במשרד עכשיו.

Use it as a template for making your own sentences, such as:

• יש יותר מדי אנשים פה עכשיו. = There are too many people here now.
• יש יותר מדי עבודה היום. = There is too much work today.