"Το μεταπτυχιακό και το διδακτορικό."

Translation: The postgraduate and the Doctorate.

[daph03ne]

In the states, "graduate degree" would be more common than "postgraduate degree" and means the same thing (degree after university/college)

[BenjaminDe540650]

Referring to the students, the degree, or the program?

[troll1995]

The degree or the program. The student is μεταπτυχιακός/διδακτορικός (φοιτητής), μεταπτυχιακή/διδακτορική (φοιτήτρια).

[robert672165]

so it can be an adjective or a noun, but as a noun it is neuter?

[troll1995]

Yes, when referring to the degree or the program, it's a neuter noun.

[DashAlex22]

The hints say that μεταπτυχιακό is "(a) Master". So why is it wrong saying "The Master and the Doctorate"?

[jaye16]

Sorry, it was our error. That should have been "the Master's" I've corrected it now. thank you for noticing it.

[Jamie36257]

Είναι το γράμμα πι σιωπηλό; Δεν το ακούω.

[D_..]

It's not but the audio is a bit strange. The π is there, but it sounds more like a pause than a π. Have you tried forvo.com at all? Audio files there are created by native speakers, not text-to-speech software, so you get a real life pronunciation, good or bad I suppose (whether it's easier to understand for a learner, I can't tell!)