У вихідні ми часто бачимося з родичами, бо вся родина збирається разом.

Вихідні is normally used as a plural noun in Ukrainian when talking about the weekend in a general sense.

So у вихідні means on weekends or at the weekend.

A few useful comparisons:

• у вихідні = on weekends, during the weekend
• у суботу = on Saturday
• у неділю = on Sunday

Ukrainian often treats weekend as a plural idea, similar to days off.

Yes. У вихідні and на вихідних are both common and natural.

Very roughly:

• у вихідні = during the weekend / on weekends
• на вихідних = on the weekend / over the weekend

In everyday speech, they are often interchangeable.
So this sentence could also be said as:

На вихідних ми часто бачимося з родичами...

Both sound normal.

Because бачимося means we see each other or we meet, not just we see something.

The ending -ся often adds a reflexive or reciprocal meaning. Here it gives the idea of mutual action:

• бачимо = we see
• бачимося = we see each other / we meet

So in this sentence, ми часто бачимося з родичами means that we and our relatives meet / see each other often.

The dictionary form is бачитися.

This is an imperfective verb. Its present-tense forms include:

• я бачуся
• ти бачишся
• він / вона бачиться
• ми бачимося
• ви бачитеся
• вони бачаться

In this sentence, ми бачимося = we see each other / we meet.

Родичами is in the instrumental plural.

After the preposition з in the meaning with, Ukrainian normally uses the instrumental case:

• з другом = with a friend
• з друзями = with friends
• з родичами = with relatives

So:

• nominative plural: родичі
• instrumental plural: родичами

That is why the sentence has з родичами, not з родичі.

They are related, but not identical.

• родичі = relatives
• родина = family

So in the sentence:

• бачимося з родичами = we see our relatives
• вся родина збирається разом = the whole family gathers together

Родичі can include a wider circle: grandparents, aunts, uncles, cousins, and so on.
Родина can mean the family as a unit.

Both вся and уся are correct. They are just variant forms of the same word meaning all / whole.

So these both work:

• вся родина
• уся родина

In modern Ukrainian, вся is very common in everyday use.

Because родина is grammatically singular.

Even though family refers to several people, the noun itself is singular, so the verb is singular too:

• родина збирається = the family gathers

This is similar to English the family gathers, although English can sometimes vary depending on style.

Here збирається means gathers or gets together.

The verb is збиратися. In different contexts it can mean:

• to gather
• to get together
• to assemble
• sometimes to be about to / to intend to, in other constructions

In this sentence, it clearly has the meaning to gather together as a group.

Because the sentence describes a habitual, repeated action:

У вихідні ми часто бачимося...
This means on weekends we often meet / see each other.

For repeated or regular actions, Ukrainian usually uses the imperfective aspect.

So:

• бачитися = imperfective, to see each other / meet regularly or in general
• збиратися = imperfective, to gather regularly or in general

If you were talking about one completed occasion, a perfective verb might be more likely.

Бо means because.

Yes, it is very close to тому що, and in many sentences they can replace each other.

• бо = because
• тому що = because

Бо is shorter and often feels a little more conversational.
So you could also say:

У вихідні ми часто бачимося з родичами, тому що вся родина збирається разом.

That would still be correct.

Good question. Разом is not strictly necessary for the basic meaning, because збирається already suggests coming together.

But разом adds emphasis and makes the idea sound more complete and natural:

• збирається = gathers
• збирається разом = gathers together

This is similar to English, where gather together is a common phrase even though gather already contains that idea.

Yes, Ukrainian word order is fairly flexible.

The given order is natural because it starts with the time expression:

• У вихідні = on weekends

Then comes:

• ми = we
• часто = often
• бачимося з родичами = see our relatives / meet with relatives

Other word orders are possible, for example:

• Ми часто бачимося з родичами у вихідні.
• З родичами ми часто бачимося у вихідні.

These versions may shift the emphasis slightly, but the core meaning stays the same.

In this structure, the natural meaning is we meet with / see each other with relatives, or more simply we see our relatives in the sense of we get together with them.

The verb бачитися з кимось is a common pattern meaning:

• to see someone
• to meet with someone
• literally, to see each other with someone

So although the grammar contains the reciprocal -ся, in real usage бачитися з + instrumental is a standard way to say to meet / see someone socially.

It suggests a habitual pattern, not necessarily every single weekend.

The key word is часто = often.

So the idea is:

• on weekends, we often see our relatives
• because the whole family gets together

If it meant every weekend more strongly, you might see something like щовихідних = every weekend.