This is the 100th most frequent Greek word.
άλλη
"Άλλη" means "other" or "another" in English.
The word 'άλλη' is used here as an adjective which means 'other', describing a different beach than the current one being discussed.
Αύριο θα πάμε στην άλλη παραλία.
Tomorrow we will go to the other beach.
In this sentence, 'άλλη' means 'another', referring to an additional person.
Η Άννα γνώρισε μια άλλη κοπέλα στην εκδήλωση.
Anna met another girl at the event.
Here, 'άλλη' is translated as 'different', indicating the selection of a different option from a set of possibilities.