bviate, _prevent_, 284

obvious, _clear_, 107
" _evident_, 159

occasion, _cause_, 98
" _make_, 236

occult, _mysterious_, 247

occupation, _business_, 88
" _exercise_, 162
" _work_, 374

occupied, _industrious_, 215

occupy, _entertain_, 152
" _have_, 194

occur, _happen_, 188

occurrence, _circumstance_, 105
" _event_, 158

ocean, _a._, _nautical_, 248

oceanic, _nautical_, 248

odd, _queer_, 297
" _rare_, 300

offend, _affront_, 24

offense, _abomination_, 7
" _anger_, 44
" _pique_, 272
" _sin_, 332

offer, _v._, _allege_, 31

offer, _n._, _proposal_, 292

offhand, _extemporaneous_, 163

office, _duty_, 142

officious, _active_, 17
" _meddlesome_, 238

officiousness, _impudence_, 213

_old_, 257
" _obsolete_, 256
" _primeval_, 287

olden, _old_, 257

old-fashioned, _antique_, 48

omen, _sign_, 332

omission, _neglect_, 251

oneness, _union_, 362

onerous, _difficult_, 132

only, _but_, 89

onset, _attack_, _n._, 64

onslaught, _attack_, _n._, 64

on the alert, _vigilant_, 369

on the lookout, _vigilant_, 369

on the watch, _alert_, 28

opaque, _dark_, 122

open, _bluff_, 83
" _candid_, 93
" _evident_, 159

open-handed, _generous_, 182

open-hearted, _generous_, 182

opening, _beginning_, 78
" _entrance_, 154

_operation_, 258
" _act_, 16
" _exercise_, 162

operative, _artist_, 58

operator, _agent_, 24

opinion, _faith_, 164
" _idea_, 206

opinionated, _dogmatic_, 137
" _obstinate_, 256

opponent, _enemy_, 151

oppose, _contrast_, 118
" _hinder_, 199
" _obstruct_, 257

opposed, _alien_, _a._, 29
" _reluctant_, 308

opposition, _ambition_, 40
" _antipathy_, 48
" _collision_, 109

oppress, _abuse_, 12

option, _alternative_, 38

oral, _verbal_, 368

oration, _speech_, 339

oratory, _speech_, 339

_order_, 258
" _array_, 57
" _class_, 106
" _law_, 229
" _system_, 350

orderly, _neat_, 249

order of battle, _array_, 57

ordinance, _law_, 229
" _sacrament_, 321

ordinary, _general_, 181
" _normal_, 253
" _usual_, 362

organic, _radical_, 299

origin, _beginning_, 78
" _cause_, 98

original, _a._, _authentic_, 67
" _native_, 248

original, _n._, _ideal_, 206
" _model_, 243
" _primeval_, 287
" _radical_, 299
" _transcendental_, 361