consul, -lis
An official of the Roman state. In the period of the Republic, it was the highest military and political office: two consuls were elected each year. The consular office survived into the Imperial period (and further into the early Byzantine period), becoming a honorary post.

conventus, us
In the Roman provinces, the term referred to the meetings of the provincials in places appointed by the praetor or the proconsul of the province for the purpose of administering justice. In order to facilitate the procedure, the province was divided into districts or circuits called conventus, forum or jurisdictio. The Roman citizens living in a province under the jurisdiction of the proconsul, and accordingly had to settle any business at a conventus had to appear there.

katoikia
This term describes a settlement, although it has a different meaning in every period. During the Hellenistic age katoikia refers mainly to the settlement of the Macedonian soldiers. Later though, it is used as a synonym to kome and village.

senate, the
The top political body of the Roman state. During the early Republic, it was represented by the council of the consuls, the top archons of the roman state. Later on, its power and responisibilities increased. As a result, it became the main governmental body of Rome. However, during the Imperial period, the responsibilities of the senate were restricted.