П’ятий урок — завтра.

In Ukrainian, a dash is often used where English would use is.

So П’ятий урок — завтра literally looks like:

Fifth lesson/class — tomorrow

But it means:

The fifth lesson is tomorrow.

Ukrainian often leaves out the present-tense verb to be (є) in simple statements like this, especially in neutral written style. The dash helps show the link between the two parts of the sentence.

Because in Ukrainian, the present tense of to be is usually omitted.

So instead of saying something like П’ятий урок є завтра, Ukrainian normally just says:

П’ятий урок — завтра

This is very natural. English requires is, but Ukrainian usually does not in this kind of sentence.

П’ятий means fifth.

It is an ordinal number, which behaves like an adjective in Ukrainian. That means it changes its form to agree with the noun it describes.

Here it describes урок (lesson, class), which is:

• masculine
• singular
• nominative

So the form is п’ятий.

Compare:

• п’ятий урок — fifth lesson/class
• п’ята сторінка — fifth page
• п’яте завдання — fifth task
• п’яті учні — fifth students / the fifth students

Because урок is the subject-like part of the sentence, and in this structure Ukrainian uses the nominative case.

So both words stay in nominative:

• п’ятий — nominative masculine singular
• урок — nominative masculine singular

Even though English might make you think in terms of on the fifth lesson or the fifth period, Ukrainian here is simply naming the thing: the fifth lesson.

It can mean either, depending on context.

Common meanings of урок include:

• lesson as a unit of study
• class period at school
• sometimes even a lesson in the sense of something learned from experience

In a school timetable context, п’ятий урок often means the fifth class period.

So if the meaning shown to the learner is The fifth class is tomorrow, that fits well.

Yes, absolutely.

Ukrainian word order is flexible, and both are natural:

• П’ятий урок — завтра
• Завтра п’ятий урок

The difference is mostly in emphasis:

• П’ятий урок — завтра emphasizes the fifth lesson
• Завтра п’ятий урок emphasizes tomorrow

So if you are answering When is the fifth lesson?, the first version feels especially appropriate.

A rough pronunciation guide is:

PYA-tyi

A few important points:

• п’ has an apostrophe after it, so the p stays separate from the ya sound.
• я here sounds like ya
• the stress is on the first syllable: П’Ятий

So it sounds roughly like:

PYA-tyi

Not exactly like English, of course, but that approximation helps.

The apostrophe shows that the consonant before it is not softened and that the following vowel keeps its y-like sound.

So in п’ятий:

• п stays hard
• я is pronounced as ya

Without going too deep into phonetics, the apostrophe helps prevent the sounds from blending in the wrong way.

You also see this in words like:

• ім’я — name
• п’ять — five
• об’єкт — object

Ukrainian does not have articles like English a and the.

So П’ятий урок can mean:

• the fifth lesson
• sometimes just fifth lesson

The exact meaning depends on context.

In this sentence, English usually needs the:

The fifth lesson is tomorrow.

But Ukrainian expresses that without any article.

It is a complete sentence.

Even though it is short, it has a full predicative meaning:

• П’ятий урок — what we are talking about
• завтра — the information being given about it

This kind of sentence is very normal in Ukrainian. It can also sound a bit concise or schedule-like, which fits well if someone is talking about a timetable.

Yes, П’ятий урок завтра is possible, especially in speech or informal writing.

But the version with the dash:

П’ятий урок — завтра

makes the sentence structure clearer and often feels more deliberate or emphatic.

So:

• П’ятий урок завтра — possible, more conversational
• П’ятий урок — завтра — very clear, neat, often preferred in writing

You would need to change the structure because now you have more than one lesson.

For example:

П’ятий і шостий уроки — завтра.

Here:

• п’ятий — fifth
• шостий — sixth
• уроки — lessons/classes, plural

Notice that урок becomes уроки in the plural.

So ordinal numbers still agree with the nouns they describe, just as adjectives do.