Ecclesia means church.
' Between rivers ' or it could be also 'in the middle of a river'
actor = ο ηθοποιός (Oh Eeth-oh-pee-OHS)
The word χαμένος (chamenos). e as in exit.
Orchestra, is: ΟΡΧΗΣΤΡΑ, ορχήστρα. If by "Orchestrer", you mean the leader of the orchestra, then is: ΟΡΧΗΓΟΣ, ορχηγός, OR: ΕΝΟΡΧΗΣΤΡΩΤΗΣ,...