Building on what clintmyster said, all you need are the essential words: (Also, note that where words end in 'ium', the plural is 'ia' and where they end in 'um', the plural is 'a')
sesterces - common unit of money used at the time
macellum - the market
pistrinium - bakery
latrine - public toilets
fullonica - laundries
thermopolium - hot food shop
atrium - the central hall with opening
compluvium - the opening in the roof of the atrium, designed to let rainwater fall in
impluvium - small shallow pool to catch the rainwater from the compluvium
duoviri quinquennales - two men who were the elected magistrates of Pompeii, responsible for the town's adminsitration
aediles - two men responsible for the administration of public buildings and events, they were elected every July who took office the following year in January.
paterfamilias - the head of the household
lares - family gods
lararium - shrine dedicated to the family gods
triclinium - dining room
cubiculum - bedrooms
culina - kitchen
basilica - a building located in the forum where business transactions and legal affairs took place and were handled
forum - the town square, it contained the temples and basilica
garum - the sauce made from rotting fish for which Pompeii was famous