Vidíme horu z okna.

Vidíme means we see.

It is the 1st person plural present tense form of the verb vidět (to see).

• vidím = I see
• vidíš = you see
• vidí = he/she/it sees
• vidíme = we see
• vidíte = you see / you all see
• vidí = they see

So the ending -íme tells you the subject is we.

In Czech, subject pronouns are often omitted when the verb ending already makes the subject clear.

So:

• Vidíme horu z okna.
• My vidíme horu z okna.

Both can mean We see a mountain from the window, but the first is more neutral and natural in many situations.

You add my only if you want emphasis, contrast, or clarity.

Because horu is the accusative singular form of hora (mountain).

In this sentence, mountain is the direct object — it is the thing being seen. Czech marks direct objects with case endings, and many feminine nouns change in the accusative.

For hora:

• hora = nominative singular
• horu = accusative singular

So:

• Hora je vysoká. = The mountain is tall.
• Vidíme horu. = We see the mountain / a mountain.

Because the preposition z requires the genitive case.

The basic form is:

• okno = window

After z, it changes to:

• z okna = from the window

So the structure is:

• z
  • genitive

Examples:

• z domu = from the house
• z města = from the city
• z okna = from the window

Here, z okna means something like from the window or out of the window, in the sense of from our viewpoint at the window.

So the idea is: we are at the window, and from there we can see the mountain.

It does not usually mean that the mountain itself is coming from the window. The phrase naturally attaches to the action of seeing.

Depending on context, English might say:

• We can see the mountain from the window.
• We see the mountain out of the window.

Both z and ze mean from, but ze is used mainly for easier pronunciation in certain sound combinations.

Here, z okna is completely normal because z + o is easy to pronounce.

Compare:

• z okna = from the window
• ze školy = from school
• ze stolu = from the table

So ze is not a different meaning here — it is mainly a pronunciation-driven variant.

Yes, you could also say Z okna vidíme horu.

Czech word order is more flexible than English because case endings show grammatical roles. The basic sentence:

• Vidíme horu z okna.

is neutral and natural.

But you can move parts of the sentence for emphasis or style:

• Z okna vidíme horu. = From the window, we see a mountain.
• Horu vidíme z okna. = It is the mountain that we see from the window.

The meaning stays basically the same, but the focus changes.

It can mean either a mountain or the mountain. Czech has no articles like a and the.

So horu by itself does not tell you whether it is definite or indefinite. You understand that from context.

For example:

• Vidíme horu. could mean We see a mountain.
• It could also mean We see the mountain.

Context decides which translation is best.

Vidět is usually treated as an imperfective verb.

Here that matters because the sentence describes a present situation:

• Vidíme horu z okna. = We see the mountain from the window.

Czech perfective verbs normally do not have a true present-tense meaning like this. A related perfective verb such as uvidět would usually refer to a future completed event:

• Uvidíme horu. = We will catch sight of / we will see the mountain.

So vidíme is the correct choice for a normal present meaning.

In this sentence, okna is genitive singular of okno.

That can be confusing because okna can also be nominative plural in other contexts.

Here the preposition z tells you what case to expect: genitive. So:

• okno = nominative singular
• z okna = genitive singular

Compare:

• Okna jsou otevřená. = The windows are open.
  Here okna is plural.
• Díváme se z okna. = We are looking from the window.
  Here okna is genitive singular.

So the preposition and sentence structure help you identify the form.

In practice, yes, that may be the natural English interpretation in many situations, but Czech is not saying through literally here.

• z okna = from the window / from the viewpoint of the window
• skrz okno or přes okno would be closer to through the window, depending on context

So if you translate naturally, We see the mountain through the window may fit the situation, but the Czech wording focuses more on where we are seeing it from than on looking through the glass itself.