"We have the same address because we live with our parents."

Translation: Έχουμε την ίδια διεύθυνση γιατί ζούμε με τους γονείς μας.

[O8H72]

Coul we use επειδή at the place of Γιατί ?

[jaye16]

Yes, "επειδή" is also accepted.

[I.Schmidt1]

επειδή is marked wrong, but it has the same meaning as γιατί

[troll1995]

Thanks it's added now!

[jeanprendiville]

I always thought γιατί meant why and διότι meant because ?

[troll1995]

Γιατί can mean both why and because. Διότι=Επειδή=Because, too.

[jeanprendiville]

Thanks Troll, that clears up my uncertainty.

[IoannisSP]

διότι is marked wrong, but it has the same meaning as γιατί

[Snekre]

Can someone explain why it is τους γονείς? Thanks!

[mizinamo]

The preposition με requires the accusative case.

γονείς "parents" is masculine plural (formally the plural of γονέας "begetter"), so you need masculine plural accusative -- and the definite article for that combination is τους.

Thus (με) τους γονείς for "(with) the parents" and (με) τους γονείς μας for "(with) our parents".