Questions & Answers about Ένας από τους φίλους μου μένει στην Ελλάδα.
Ένας can mean both a/an and one, depending on context.
In this sentence, ένας από τους φίλους μου means one of my friends, so the idea of one is more explicit than just a.
It is capitalized as Ένας simply because it is the first word of the sentence.
This is the standard Greek way to say of my friends after one:
- ένας από... = one of...
- τους φίλους μου = my friends
So:
- ένας από τους φίλους μου = one of my friends
Also, από takes the accusative, which is why you see τους φίλους.
Because the structure means one from a group of friends.
You are talking about:
- one person from
- my friends (a plural group)
So Greek uses the plural φίλους because it refers to the larger group that the one person comes from.