Билет стоит один фунт.

Russian has no articles, so there is no direct equivalent of the or a/an.

So билет can mean:

• a ticket
• the ticket

Which one is meant depends on the context.

Here стоит means costs or is worth.

So:

• Билет стоит один фунт = The ticket costs one pound

Be careful: стоить is different from стоять, even though the forms can look similar.

• стоить = to cost
• стоять = to stand

In this sentence, the meaning is clearly to cost.

Стоит is the 3rd person singular present tense form of стоить.

That matches билет, which is singular:

• билет стоит = the ticket costs

Compare:

• билеты стоят = the tickets cost

So the verb changes to agree with the singular or plural subject.

Yes, you often can omit один in this kind of sentence.

Both are possible:

• Билет стоит фунт
• Билет стоит один фунт

Adding один makes the number one more explicit. It can sound a bit more precise or emphatic, especially for learners and in simple example sentences.

After the number один (one), the noun is in the nominative singular:

• один фунт = one pound

This is a standard Russian number pattern:

• один фунт
• два фунта
• пять фунтов

So фунт is singular because the number is one.

Один changes for gender, like an adjective.

The noun фунт is masculine, so you use:

• один фунт

Compare:

• одна книга = one book (книга is feminine)
• одно окно = one window (окно is neuter)

So the form of one must match the gender of the noun.

In один фунт, фунт is in the nominative singular.

With prices after стоить, Russian often uses a numeral phrase like:

• стоит один фунт
• стоит два фунта
• стоит пять фунтов

The noun form depends mainly on the number:

• 1 → nominative singular
• 2, 3, 4 → genitive singular
• 5+ → genitive plural

The neutral word order is:

• Билет стоит один фунт.

This is a very normal way to say it.

Russian word order is more flexible than English, so other orders are possible, for example for emphasis:

• Один фунт стоит билет. — unusual, very marked
• Стоит билет один фунт. — possible in certain contexts, but not the neutral default

For a learner, Билет стоит один фунт is the best standard order.

A rough pronunciation guide:

• биле́т → bee-LYET
• стои́т → sta-EET
• оди́н → a-DEEN
• фунт → foont

Stress matters in Russian:

• биле́т
• стои́т
• оди́н
• фунт

It can mean either, depending on context.

Фунт can be:

• pound sterling (money)
• pound (weight)

In this sentence, because it is about cost, it means one pound as money.

No. Билет is a broad word and can mean:

• a travel ticket
• an admission ticket
• sometimes a pass or card in certain contexts

So the exact type of ticket depends on the situation.

Yes, it is grammatically natural. But in real life, a speaker might also say:

• Билет стоит фунт.
• Билет стоит один фунт стерлингов. = The ticket costs one pound sterling.
• Это стоит один фунт. = This costs one pound.

The sentence you have is a perfectly good simple example sentence.

The number changes the form of фунт:

• Билет стоит один фунт.
• Билет стоит два фунта.
• Билет стоит пять фунтов.

This is one of the most important Russian number patterns to learn:

• 1 → фунт
• 2, 3, 4 → фунта
• 5 and above → фунтов

You can often make it a question just with intonation:

• Билет стоит один фунт? = Does the ticket cost one pound?

Or ask more directly:

• Сколько стоит билет? = How much does the ticket cost?

That second sentence is very common in real conversation.