Act 13:1 Now there were in the church that was at Antioch certain prophets and teachers; as Barnabas, and Simeon that was called Niger, and Lucius of Cyrene, and Manaen, which had been brought up with Herod the tetrarch, and Saul.
ekklēsia
Thayer Definition:
1) a gathering of citizens called out from their homes into some public place, an assembly
1a) an assembly of the people convened at the public place of the council for the purpose of deliberating
1b) the assembly of the Israelites
1c) any gathering or throng of men assembled by chance, tumultuously
1d) in a Christian sense
1d1) an assembly of Christians gathered for worship in a religious meeting...