| A | B |
|---|
| ostracize | to banish or exclude |
| oblivion | state of being totally forgotten |
| obsolete | out of style |
| obtuse | insensitive; thick-headed |
| occult | pertaining to supernatural phenomena |
| olfactory | pertaining to the sense of smell |
| ostentatious | showy, pretentious |
| obscure | unknown; hard to understand |
| pacify | to calm someone down |
| parsimonious | stingy |
| patronize | to treat as an inferior: to condescend |
| perennial | continual: happening again and again or year after year |
| perjury | lying under oath |
| permeate | to spread or seep through |
| peruse | to read carefully |
| plethora | an excess |
