Olden, a. [Rare.] Ancient, old, not modern.
Old-fashioned, a. Antiquated, antique, ancient, old, archaic, out of fashion, out of date, fallen into desuetude.
Old-time, a. Former, quondam, late, ci-devant, in former times.
Old-womanish, a. Anile, aged, doting, imbecile, decrepit, superannuated.
Oleaginous, a. Oily, unctuous, greasy, sebaceous, adipose, fatty, fat.
Olibanum, n. Frankincense (of the ancients).
Olio, n. Medley, mixture, jumble, farrago, hodge-podge, hotch-potch, miscellany, salmagundi, gallimaufry, olla podrida, pot-pourri.
Olla podrida, [Sp.] Mixture, medley, olio.
Ombrometer, n. Rain-gauge, pluviameter, udometer.
Omen, n. Prognostic, presage, augury, foreboding, portent, auspice, sign.
Omentum, n. (Anat.) Caul, epiploön.
Ominous, a. Portentous, monitory, premonitory.
Omission, n. Failure, neglect, default.
Omit, v. a. 1. Leave out, not mention.
2. Neglect, miss, let slip, let go, pass by.
Omnipotence, n. 1. Almighty power.
2. God, The Omnipotent.
Omnipotent, a. Almighty, all-powerful.
Omnipotent, n. [With The prefixed.] God, The Almighty.
Omnipresence, n. Ubiquity, universal presence.
Omnipresent, a. Ubiquitous, universally present.
Omniscience, n. 1. Infinite wisdom, boundless knowledge.
2. God, The Omnipotent.
Omniscient, a. Infinitely wise, all-wise, all-knowing.
Omnivorous, a. All-devouring, pantophagous.
On, prep. Upon.
On, ad. Forward.
On account of, By reason of, by virtue of, in consequence of.
On all fours, 1. On lour legs.
2. Evenly balanced, quite parallel, quite symmetrical.
On all hands, By all parties, by everybody.
On an average, Taking a mean of all cases, taking the average.
Onanism, n. Masturbation, self-pollution, self-abuse, secret vice.
On a par, On a level, on an equality.
Once, ad. 1. For one time.
2. Formerly, in former times.
On-dit, n. [Fr.] Rumor, report, bruit, the town talk, flying report.
One, a. 1. Single, individual.
2. The same.
3. United, undivided.
One, n. 1. Unit.
2. Individual, person, human being.
One-berry, n. True-love, herb-paris (Paris quadrifolia).
One day, Some day, sooner or later, one of these days.
On end, Erect, upright.
One of these days, Some day, one day, sooner or later.
Onerous, a. Burdensome, oppressive, heavy, weighty, laborious, toilsome, operose, hard, difficult.
On exhibition, Displayed, exhibited, on view.