3. Begin, commence.
Open, a. 1. Unclosed, not shut.
2. Expanded, extended, broad, not folded, not contracted.
3. Frank, unreserved, candid, ingenuous, undisguised, undesigning, artless, undissembling, sincere, guileless, fair, honest, single-minded, above-board, open-hearted.
4. Liberal, generous, munificent, bountiful, open-handed.
5. Exposed, unprotected, undefended.
6. Public, unrestricted, clear, unobstructed, free to all.
7. Unsettled, undetermined, not adjusted.
8. Mild, moderate, not frosty, not cold.
Open-handed, a. Generous, liberal, munificent, bountiful.
Open-hearted, a. Candid, frank, artless, guileless, open.
Opening, n. 1. Aperture, hole, orifice, perforation, breach, chasm, cleft, gap, fissure, rent, rift, flaw.
2. Beginning, commencement.
3. Opportunity, chance.
Opera-glass, n. Lorgnette.
Operate, v. n. [Followed by on or upon.] Act, work, have effect, have influence.
Operation, n. 1. Action, agency, force, influence, effect.
2. Performance, procedure, process, proceeding, manipulation.
3. Movement, motion, manœuvre.
Operative, a. 1. Acting, active, in action, in operation.
2. Effective, efficient, effectual, efficacious, serviceable.
Operative, n. Laborer, artisan, laboring man, common workman.
Operator, n. Doer, actor, performer, agent, executor.
Operose, a. Laborious, toilsome, hard, onerous, burdensome, difficult, tedious, wearisome, irksome.
Ophite, n. (Min.) Serpentine, green porphyry.
Ophthalmia, n. [L.] Ophthalmy.
Ophthalmy, n. (Med.) Ophthalmia, inflammation of the eye.
Opiate, n. Anodyne, narcotic, sedative.
Opine, v. n. [Obsolete or colloquial.] Think, judge, believe, suppose, conceive, apprehend, fancy, ween, presume, take it, be of opinion, have an opinion.
Opinion, n. 1. Judgment, notion, view, belief, idea, conception, impression, sentiment.
2. Estimate.
Opinionated, a. Conceited, dogmatical, opinionative, stiff or stubborn in opinion.
Opinionative, a. Opinionated.
Opponent, n. Antagonist, adversary, rival, competitor, enemy, foe, adverse party.
Opportune, a. Seasonable, convenient, timely, fit, suitable, favorable, propitious, auspicious, fortunate, lucky, apropos, well-timed, to the purpose.
Opportunely, ad. Seasonably, in the nick of time, all in good time, in the fulness of time.
Opportunity, n. Chance; fit, suitable, or favorable time; good chance, fitting occasion, nick of time.
Oppose, v. a. 1. Resist, withstand, contravene, thwart, oppugn, combat, strive against, set one's face against, make a stand against.
2. Contradict, gainsay, deny.
Opposing, a. Conflicting, counteracting, antagonistic, adverse, opposite, hostile, inimical.
Opposite, a. 1. Facing, over against.
2. Contrary, repugnant, diverse, unlike, incompatible, inconsistent.
3. Adverse, opposed, opposing, antagonistic, hostile, inimical.
Opposition, n. 1. Contrariety, repugnance, diversity, inconsistency.
2. Counteraction, hostility, resistance.
Oppress, v. a. 1. Overburden, crush, overwhelm, overpower, weigh heavily upon, bear hard upon.
2. Persecute, wrong, maltreat, treat cruelly, tyrannize over.
Oppression, n. 1. Hardship, misery, suffering, calamity.
2. Tyranny, severity, cruelty, injustice, persecution.
Oppressive, a. 1. Heavy, overwhelming, overpowering.
2. Tyrannical, cruel, severe, hard, rigorous, inhuman, grinding, galling.
3. Close, uncomfortable.
Oppressor, n. Tyrant.
Opprobrious, a. 1. Reproachful, scurrilous, abusive, vituperative, insolent, condemnatory, damnatory, scandalous, contemptuous, offensive, insulting.
