O'PTICS, _s._ the science of the nature and laws of vision O'PULENT, _a._ rich O'RACLE, _s._ something delivered by supernatural wisdom; the place where, or persons of whom, the determinations of heaven are inquired O'RAL, _a._ delivered by mouth; not written O'RATOR, _s._ a public speaker; a man of eloquence O'RBIT, _s._ a circle; path of a heavenly body O'RCHARD, _s._ a garden of fruit trees O'RCHIS, _s._ a kind of flowering plant O'RDER, _s._ method; regularity; command; a rank or class; rule O'RDINANCE, _s._ law; rule; appointment O'RDINARY, _a._ established; regular; common; of low rank O'RDNANCE, _s._ cannon; great guns O'RGAN, _s._ natural instrument: as the tongue is the organ of speech. A musical instrument ORGA'NIC, _a._ consisting of various parts co-operating with each other O'RGANISM, _s._ organic structure O'RIENT, _a._ eastern; oriental; bright; gaudy ORI'GINAL, _a._ primitive; first O'RNAMENT, _v.a._ embellish; decorate OSCILLA'TION, _a._ the act of moving backward or forward like a pendulum O'SSEOUS, _a._ bony; resembling bone OSTENTA'TION, _s._ outward show; pride of riches or power OSTRICH, _s._ a large bird OTHERWISE, _ad._ in a different manner; by other causes; in other respects OU'TLET, _s._ passage outward OU'TSET, _s._ setting out; departure OU'TWARD, _a._ external; opposed to _inward_. OVERFLO'W, _v.a._ deluge; drown; overrun; fill beyond the brim OVERTA'KE, _v.a._ catch anything by pursuit; come up to something going before OVERTHRO'W, _v.a._ turn upside down; throw down; ruin; defeat; destroy OVERWHE'LM, _v.a._ crush underneath something violent and weighty; overlook gloomily PACI'FIC, _a._ mild; gentle; appeasing PA'LACE, _a._ a royal house PA'LTRY, _a._ worthless; contemptible; mean PA'RADISE, _s._ the blissful region in which the first pair were placed; any place of felicity PA'RALLEL, _a._ extending in the same direction; having the same tendency PARALLE'LOGRAM, _s._ in geometry, a right-lined four-sided figure, whose opposite sides are parallel and equal PA'RAPET, _s._ a wall breast high PA'RCEL, _s._ a small bundle; a part of a whole PA'RDON, _s._ forgiveness PARO'CHIAL, _a._ belonging to a parish PARO'TIDA-SA'LIVART, _a._ glands so named because near the ear PA'RTICLE, _s._ any small quantity of a greater substance; a word unvaried by inflection PARTICULAR, _s._ a single instance; a minute detail of things singly enumerated. IN PARTICULAR, peculiarly; distinctly PARTICULARLY, _ad._ in an extraordinary degree; distinctly PA'SSAGE, _s._ act of passing; road; way; entrance or exit; part of a book PA'SSENGER, _s._ traveller; a wayfarer; one who hires in any vehicle the liberty of travelling PA'SSIONATE, _a._ moved by passion; easily moved to anger PA'SSIVE, _a._ unresisting; suffering; not acting PA'STORAL, _a._ rural; rustic; imitating shepherds PATHE'TIC, _a._ affecting the passions; moving