Η σύντροφός μου δουλεύει αργά απόψε, οπότε θα φάμε μαζί αύριο.

Because Greek normally uses the definite article with possessed nouns. So where English says my partner, Greek usually says literally the partner my: η σύντροφός μου.

This is very common:

• ο φίλος μου = my friend / boyfriend
• η αδερφή μου = my sister
• το σπίτι μου = my house

For an English speaker, this can feel unusual at first, but in Greek it is the default pattern.

This happens because of the enclitic μου.

The basic word is σύντροφος. When a weak word like μου follows, Greek spelling often adds an extra accent to show the stress pattern of the whole phrase:

• σύντροφος
• σύντροφός μου

So the extra accent is not a different word or a different meaning. It is a spelling rule triggered by the following enclitic.

Because μου here is a weak possessive pronoun, and in Greek it normally comes after the noun:

• η σύντροφός μου = my partner
• ο αδερφός μου = my brother

So Greek often structures this as the partner my, not my partner.

If Greek wants stronger emphasis, it can use other structures, but the normal everyday pattern is noun + μου.

σύντροφος usually means partner in the romantic sense. Depending on context, it can correspond to:

• partner
• boyfriend / girlfriend
• life partner

It is often a bit more neutral or adult-sounding than a very specific label like boyfriend or girlfriend.

In this sentence, the article η shows that the partner is female:

• η σύντροφός μου = my female partner
• ο σύντροφός μου = my male partner

Because Greek often uses the simple present the way English uses either works or is working.

So δουλεύει αργά απόψε can mean:

• works late tonight
• is working late tonight

The Greek present tense is very flexible here. You do not need a special progressive form the way English often does.

It can mean either, depending on context.

Here it means late, because it is connected to working and to απόψε:

• δουλεύει αργά απόψε = works late tonight

In other contexts, αργά can mean slowly:

• Οδηγεί αργά = He/She drives slowly

So you have to use context to decide which meaning fits.

απόψε means tonight.

It is very close in meaning to σήμερα το βράδυ = this evening / tonight, but απόψε is shorter and very common in everyday speech.

So:

• απόψε = tonight
• σήμερα το βράδυ = tonight / this evening

In many situations, they are interchangeable.

Here οπότε means so, therefore, or as a result.

It connects the two ideas:

• my partner is working late tonight
• therefore, we will eat together tomorrow

So the logic is: Η σύντροφός μου δουλεύει αργά απόψε, οπότε θα φάμε μαζί αύριο.

In other contexts, οπότε can sometimes have a more time-related sense, but here it clearly introduces a result.

θα is the future marker in Modern Greek.

So:

• θα φάμε = we will eat

A useful thing for English speakers to know is that Greek does not form the future with an infinitive like will eat. Instead, it uses θα plus a verb form.

Because Greek is choosing the aorist form here to express a single, complete future event.

• θα φάμε = we will eat
• θα τρώμε = we will be eating / we will eat regularly

In this sentence, the meaning is one specific meal tomorrow, so θα φάμε is the natural choice.

This is a very important Greek pattern:

• θα
  • aorist form = simple future, one whole event
• θα
  • present/imperfective form = ongoing, repeated, or habitual future action

μαζί means together.

So θα φάμε μαζί αύριο means not just we will eat tomorrow, but specifically we will eat together tomorrow.

It emphasizes that they are not eating separately.

Yes, it could move. Greek word order is more flexible than English word order.

These are all possible:

• Θα φάμε μαζί αύριο
• Αύριο θα φάμε μαζί
• Θα φάμε αύριο μαζί

Some versions sound more natural than others depending on emphasis, but the meaning stays very similar. In your sentence, putting αύριο at the end is perfectly natural and neutral.

Yes, it is normal here because οπότε is introducing a result clause, similar to English so in a sentence like She is working late, so we’ll eat tomorrow.

The comma helps separate:

• the reason: Η σύντροφός μου δουλεύει αργά απόψε
• the result: οπότε θα φάμε μαζί αύριο

So the punctuation works much like English punctuation in the same kind of sentence.