| A | B |
|---|
| cohort (cohors) | a unit of the Roman army; there were 10 cohorts per legion |
| legion (legio) | a unit of the Roman army; consisted of about 5000 men; basically a mini-army |
| centurion (centurio) | man in charge of a century |
| century (centuria) | unit of about 80 men |
| "first rank centurions" (primi ordines) | centurions of the first, most prestigious cohort |
| optio | assistant to a centurion; often was waiting for a position as centurion to open up |
| signifer | carried the military standards into battle; wore an animal skin |
| tesserarius | keeper of passwords |
| primus pilus | most senior centurion of the entire legion |
| praefectus castrorum | commander of the camp; highest-ranking career military person |
| legatus | commander of the legion; served 3-4 years only; member of the Senate; usually in his 30s |
| tribunes (tribuni) | 6 assistants to the legatus |
| tribunus laticlavius | (1) assistant to the legatus; someone of noble birth looking for military experience as part of a political career; wore a wide stripe |
| tribuni angusticlavii | (5) assistants to the legatus; of equestrian class; wore narrow stripe |
