Με έναν χάρακα και έναν μαρκαδόρο έγραψα πιο καθαρά τη λέξη στον πίνακα.

Here με means with and shows the means or tool used.

In Modern Greek, με is followed by the accusative case, so you get:

• με έναν χάρακα
• με έναν μαρκαδόρο

So the sentence is literally using with a ruler and a marker to describe how the action was done.

Because ένας χάρακας and ένας μαρκαδόρος are the nominative forms, the forms used for the subject of a sentence.

After με, Greek uses the accusative, so both the article and the noun change:

• ένας χάρακας → έναν χάρακα
• ένας μαρκαδόρος → έναν μαρκαδόρο

So this is just normal case agreement.

Greek often repeats the article with each noun in a pair:

• με έναν χάρακα και έναν μαρκαδόρο

This is very natural and clear. It treats them as two separate items: a ruler and a marker.

You may sometimes see article omission in other contexts, but here repeating έναν is standard and expected.

Έγραψα is the aorist of γράφω and means I wrote.

The aorist is used for a completed action in the past. So here the speaker is talking about one finished act of writing.

Compare:

• γράφω = I write / I am writing
• έγραφα = I was writing / I used to write
• έγραψα = I wrote

So έγραψα is the natural choice for a single completed event.

Πιο καθαρά means more clearly or more neatly/cleanly, depending on context.

Grammatically, it is an adverbial expression:

• καθαρά = clearly, neatly
• πιο καθαρά = more clearly, more neatly

It modifies the verb έγραψα, not a noun. That is why Greek uses καθαρά, not an adjective form agreeing with λέξη.

Because τη λέξη is the direct object of έγραψα — it is the thing that was written.

The noun λέξη is feminine:

• η λέξη = the word (nominative)
• τη λέξη / την λέξη = the word (accusative)

Since it is the object of έγραψα, Greek uses the accusative form.

Both exist, but τη λέξη is the usual form here.

The feminine article την often drops its final -ν before certain consonants. Since λέξη begins with λ, you commonly get:

• τη λέξη

You may also encounter την λέξη, especially in more careful or formal writing/speech, but τη λέξη is completely normal.

Στον is a contraction of:

• σε + τον → στον

So στον πίνακα literally means on/in/at/to the board, depending on context.

In Modern Greek, σε covers several ideas that English often separates:

• in
• on
• at
• to

With πίνακας in this classroom context, στον πίνακα means on the board.

Also notice the noun is again in the accusative:

• ο πίνακας → τον πίνακα

Greek word order is more flexible than English word order, because case endings help show what each word is doing.

Starting with:

• Με έναν χάρακα και έναν μαρκαδόρο

puts early emphasis on the tools used. It is a bit like saying:

• With a ruler and a marker, I wrote...

So this word order is not strange; it is just a matter of focus and style.

Yes. Greek allows some flexibility here.

For example, all of these can work, with slightly different emphasis:

• Έγραψα πιο καθαρά τη λέξη στον πίνακα.
• Έγραψα τη λέξη πιο καθαρά στον πίνακα.
• Πιο καθαρά έγραψα τη λέξη στον πίνακα.
  (more marked, more emphatic)

In your sentence, πιο καθαρά comes before τη λέξη, which sounds natural and highlights the manner of writing before mentioning the object.

The dictionary forms are:

• ο χάρακας = ruler
• ο μαρκαδόρος = marker
• η λέξη = word
• ο πίνακας = board

And the forms in the sentence are their accusative forms where needed:

• έναν χάρακα
• έναν μαρκαδόρο
• τη λέξη
• στον πίνακα

Seeing both the dictionary form and the sentence form is very helpful when learning Greek noun patterns.