Эта улица шире, чем дорога к парку.

Because улица is a feminine noun, and эта is the feminine form of this.

Russian this changes by gender:

• этот = masculine
• эта = feminine
• это = neuter
• эти = plural

Since улица is feminine, you must say эта улица.

Шире is the comparative form of широкий / широкая / широкое, meaning wider.

So:

• широкая улица = a wide street
• улица шире = the street is wider

In this sentence, the speaker is comparing two things, so Russian uses the comparative form:

• широкая = wide
• шире = wider

It is an irregular-looking but very common comparative form.

From the adjective широкий (wide), Russian forms the comparative шире (wider).

This is normal in Russian: many adjectives form the comparative with -ее / -ей / -е, often with a stem change.

Examples:

• большой → больше = bigger
• короткий → короче = shorter
• широкий → шире = wider

You do not need to predict every comparative perfectly at first; it is often best to learn common ones as vocabulary.

Yes, but шире is more natural here.

Russian has two main ways to make a comparative:

1. Simple comparative: шире = wider
2. Analytical comparative: более широкая = more wide / wider

In everyday speech, the simple form is usually preferred when it exists:

• Эта улица шире... = the most natural choice

A version with более широкая is grammatically possible, but it sounds heavier and less natural in such a simple sentence.

Чем is the standard word for than in comparisons.

So:

• шире, чем дорога = wider than the road

This is one of the most common comparison patterns in Russian:

• X + comparative + чем + Y

Examples:

• Он выше, чем я. = He is taller than I am.
• Сегодня теплее, чем вчера. = Today is warmer than yesterday.

Because in Russian, comparisons with чем are normally separated by a comma.

So:

• Эта улица шире, чем дорога к парку.

This comma is standard Russian punctuation.

Because in the present tense, Russian usually omits the verb to be.

English says:

• This street is wider than...

Russian simply says:

• Эта улица шире...

There is no present-tense form of быть normally used in sentences like this.

This is a very important feature of Russian:

• Он врач. = He is a doctor.
• Она дома. = She is at home.
• Эта улица шире... = This street is wider...

Because к means to / toward, and here it describes a road leading toward the park.

• дорога к парку = the road to the park
• literally: road toward the park

You may also see в парк in other contexts, but that usually emphasizes movement into the park rather than just direction toward it.

So in this sentence, дорога к парку is a very natural way to say the road to the park.

Because the preposition к requires the dative case.

The noun парк is masculine, and its dative singular form is парку.

So:

• парк = nominative
• к парку = to the park / toward the park

This is a standard pattern:

• к дому = to the house
• к школе = to the school
• к парку = to the park

Because it is the second item being compared after чем.

In this sentence:

• Эта улица = subject
• шире = comparative
• чем дорога к парку = than the road to the park

After чем, Russian commonly uses the noun in the same basic form you would expect for the thing being named here, which is дорога.

So дорога stays nominative.

They can both sometimes be translated as road or street, but they are not identical.

• улица usually means street, especially in a town or city
• дорога usually means road, route, or way

So this sentence contrasts:

• эта улица = this street
• дорога к парку = the road leading to the park

Depending on context, English translations may overlap, but the Russian words have different usual uses.

Because Russian has no articles like a or the.

So Russian simply says:

• дорога к парку

Depending on context, English may translate this as:

• a road to the park
• the road to the park

Russian leaves that distinction to context.

Yes, Russian word order is fairly flexible, but the original order is the most neutral.

Neutral version:

• Эта улица шире, чем дорога к парку.

Other orders are possible for emphasis, but they may sound marked or literary. For a learner, the original version is the best one to use.

So the sentence structure here is a very good model:

• [this + noun] + [comparative], чем + [thing compared]

It is pronounced roughly like SHEE-reh, with the stress on the first syllable:

• ши́ре

A few pronunciation notes:

• ш sounds like English sh
• и sounds like ee
• the final е is pronounced like e in met or a short eh sound

So: SHEE-reh

Usually, yes.

The word эта means this, so it points to a specific street known from the situation:

• a street you are looking at
• a street already mentioned
• a street being indicated on a map, for example

So эта улица is not just any street; it is this particular street.

The comparative шире would stay the same, but this would change to match the noun.

For example:

• Этот мост шире, чем дорога к парку.
  = This bridge is wider than the road to the park.

• Эти улицы шире, чем дорога к парку.
  = These streets are wider than the road to the park.

So the demonstrative changes for gender/number, but the comparative form шире does not.