Το ότι βρήκα θέση στο τρένο ήταν καθαρή τύχη.

Το ότι means the fact that.

In this sentence, the whole clause βρήκα θέση στο τρένο is being treated like a noun phrase, so it can act as the subject of the verb:

• Το ότι βρήκα θέση στο τρένο = The fact that I found a seat on the train

This is a very common Greek structure when you want to talk about an entire fact, event, or statement as one thing.

Without το, ότι often just means that after verbs like λέω, ξέρω, νομίζω:

• Ξέρω ότι έρχεται. = I know that he/she is coming.

With το ότι, the clause itself becomes the subject or object:

• Το ότι έρχεται με χαροποιεί. = The fact that he/she is coming makes me happy.

No, they are different.

• ότι = that
• ό,τι = whatever / anything that

So here:

• Το ότι βρήκα θέση... = The fact that I found a seat...

But:

• Παίρνω ό,τι θέλω. = I take whatever I want.

This is a very important spelling difference in Greek.

Βρήκα is the aorist form of βρίσκω and means I found.

The Greek aorist is used for a completed event, seen as a whole. Here, finding a seat is a single finished event:

• βρήκα θέση = I found a seat

If you used the imperfect (έβρισκα), it would suggest repeated action, an ongoing attempt, or a habitual situation, which does not fit as well here.

So βρήκα is the natural choice because the speaker is talking about one completed moment of success.

Because Greek often leaves out the article when the meaning is indefinite.

• βρήκα θέση = I found a seat

Here θέση does not mean a specific, already-known seat. It means a seat, so no article is needed.

Compare:

• βρήκα θέση = I found a seat
• βρήκα τη θέση = I found the seat / I found my seat

So the absence of the article gives the indefinite meaning.

στο is a contraction of:

• σε + το = στο

So:

• στο τρένο = on/in the train

A few useful points:

• Greek σε can cover English in, on, or at, depending on context.
• Greek often uses the definite article where English might not.

So although English says on the train, Greek says στο τρένο, literally something like in/on the train.

Because Greek prepositions do not match English ones one-for-one.

The preposition σε is very broad and often translates as:

• in
• on
• at
• sometimes even to

So with transport and locations, Greek often uses σε where English uses different prepositions:

• στο τρένο = on the train
• στο αυτοκίνητο = in the car
• στο σχολείο = at school

You should learn these as natural Greek combinations rather than trying to match each English preposition exactly.

καθαρή τύχη is an idiomatic expression meaning pure luck or sheer luck.

The adjective καθαρή literally means clean, pure, or clear, but here it has the sense of:

• nothing but luck
• pure luck
• sheer luck

So the speaker means that getting a seat was not due to planning, skill, or effort—it was simply luck.

Because it agrees with τύχη, which is a feminine noun.

• τύχη = feminine singular
• therefore καθαρή must also be feminine singular

This is basic adjective agreement in Greek: adjectives match the noun in:

• gender
• number
• case

So:

• καθαρή τύχη = feminine singular nominative

After a verb like ήταν (was), Greek often uses a noun phrase without an article when giving a description or classification.

So:

• ήταν καθαρή τύχη = it was pure luck

This sounds natural because the phrase is describing what the situation was.

If you added an article, the meaning or tone would change, and it would usually sound less natural here.

This is similar to English, where we say:

• It was pure luck not usually
• It was the pure luck

Because the subject is the whole clause:

• Το ότι βρήκα θέση στο τρένο

Even though that subject contains many words, it counts as one fact or one thing, so Greek uses the singular verb:

• ήταν = was

Also, verbs in Greek do not change for gender here, only for person and number. So the important thing is that the subject is treated as singular.

Yes, Greek word order is fairly flexible.

The sentence as given is neutral and clear:

• Το ότι βρήκα θέση στο τρένο ήταν καθαρή τύχη.

But Greek could also say:

• Καθαρή τύχη ήταν το ότι βρήκα θέση στο τρένο.

That version puts more emphasis on καθαρή τύχη.

So the original order is not the only possible one, but it is a very natural standard order:

• subject
• verb
• predicate

Yes. A common everyday alternative would be:

• Ήταν καθαρή τύχη που βρήκα θέση στο τρένο.

Here που introduces the clause instead of using το ότι.

Both are correct, but they feel slightly different:

• Το ότι βρήκα θέση... sounds a bit more structured or explicit: the fact that I found a seat...
• Ήταν καθαρή τύχη που βρήκα θέση... sounds very natural and conversational: It was pure luck that I found a seat...

So if you hear either version, both are normal Greek.