| A | B |
| Ogle | stare at, observe in an obvious manner |
| Olfactory | concerned with the sense of smell |
| Ominous | threatening |
| Omnipotent | all-powerful |
| Omniscient | all-knowing |
| Onerous | burdensome, hard to undertake |
| Onus | A burden or responsibility |
| Opaque | does not let light through |
| opprobium | The state of being scornfully reproached or accused of evil. |
| Opulent | wealthy, rich, magnificent |
| Ordain | destine; confer holy orders on a priest |
| Ornate | highly decorated |
| Orthodox | conventional |
| Ossify | turn to bone, become fixed and rigid |
| ostentation | A display dictated by vanity and intended to invite applause or flattery. |
| Ostentatious | showy |
| ostracism | Exclusion from intercourse or favor, as in society or politics. |
| ostracize | To exclude from public or private favor. |
| Oust | push out of a position |
| Overt | obvious, not hidden |
| Overwrought | worked up, in an emotional state |
| Palatable | good to eat, agreeable |
| palate | The roof of the mouth. |
| palatial | Magnificent. |
| Palisade | fence made of posts |
| palliate | To cause to appear less guilty. |
| Palliative | a remedy that improves but doesn't cure |
| Pallid | pale |
| Palpable | easily felt, easily perceived |
| Panacea | remedy for all ills |
| panegyric | A formal and elaborate eulogy, written or spoken, of a person or of an act. |
| panoply | A full set of armor. |
| Paradigm | example, model, way of looking at things |
| Paradox | apparently contradictory statement |
| Paragon | a perfect example |
| paramount | of chief concern or importance |
| Paramount | of supreme importance |
| Parasite | scrounger, animal which takes digested food from another |
| Parched | dried up |
| Pariah | an outcast from society; a member of a degraded class |
| Parity | equality |
| Parochial | narrow-minded, concerned only with local matters |
| Parody | a mockery, imitation for ridicule, spoof |
| paroxysm | A sudden outburst of any kind of activity. |
| Parry | ward off, avoid |
| Parsimonious | economical, frugal, thrifty; unduly sparing in the use or expenditure of money. |
| Parsimony | stinginess, frugality, cost-cutting |
| Partisan | biased, one-sided, committed to one group; characterized by or exhibiting undue or unreasoning devotion to a party. |
| pathos | The quality in any form of representation that rouses emotion or sympathy. |
| Patron | one who give support (usually financial) |
| Patronize | condescend to, behave in an arrogant manner towards |
| patronizing | treating in a condescending manner |
| Paucity | shortage; fewness |
| Peccadillo | minor weakness; trivial offence; a small breach of propreity or principle |
| Pedant | insists on strict adherence to rules or narrow learning |
| Pedestrian | common, mundane, banal; one who journeys on foot |
| Peerless | without equal |
| Pejorative | derogatory |
| Pellucid | transparently clear; translucent |
| penchant | A bias in favor of something. |
| penitent | expressing remorse for one's misdeeds |
| Pensive | in a thoughtful mood, thinking deeply |
| penurious | Excessively sparing in the use of money. |
| Penury | poverty; indigence |
| perception | awareness; insight |
| Perceptive | observant |
| Percipient | perceptive, insightful |
| Perdition | damnation |
| peregrination | A wandering. |
| Peremptory | in a commanding manner; precluding question or appeal |
| Perfidy | treachery |
| Perfunctory | superficial, cursory; half-hearted |
| Peripatetic | nomadic, moving from place to place; walking about |
| Peripheral | on the edge, not important |
| Perjury | lying under oath; a solemn assertion of a falsity |
| permeate | To pervade. |
| permeated | spread or flowing throughout |
| Pernicious | destructive, harmful; tending to kill or hurt |
| Perpetuated | caused to continue |
| Perpetuity | eternity |