| A | B |
| Latins | one of the many groups in Italy that establishsed a farming village on the Tiber River around 750 B.C. |
| Etruscans | people who lived alongside the Latins in central Italy; they were sea traders |
| republic | a form of democratic government run by elected representatives |
| consul | a chief official of the Roman Republic |
| patrician | a member of a noble family in ancient Rome |
| plebeian | a member of the common people in ancient Rome |
| tribune | a Roman official elected by the plebeians |
| veto | to stop passage of a law |
| Twelve Tables | the engraved bronze tablets that contained the first Roman code of law |
| dictator | a leader who has total power |
| civil war | war among opposing groups of citizens of the same country |
| aqueduct | a structure for carrying water over a distance |
| Pax Romana | the "Peace of Rome" or the 200-year period of peace in the Roman Empire that began with the reign of Augustus Caesar |
| legion | a unit of soldiers |
| atrium | an inner courtyard or entrance hall |
| census | a population count |
| Romance languages | the languages that developed from Latin |
| concrete | a hard substance used as a building material |