| ORICALCHES | • ORICALCHE n. (Spenser) a gold-coloured alloy, also ORICHALC. |
| ORIENTALLY | • orientally adv. In an oriental manner. • ORIENTAL adv. from the Orient. |
| ORIENTATED | • orientated v. Simple past tense and past participle of orientate. • orientated adj. Alternative form of oriented (adj) (sometimes proscribed). • ORIENTATE v. to determine the position of, relatively to fixed or known directions, also ORIENT. |
| ORIENTATES | • orientates v. Third-person singular simple present indicative form of orientate. • ORIENTATE v. to determine the position of, relatively to fixed or known directions, also ORIENT. |
| ORIENTATOR | • orientator n. An instrument for orientating. • ORIENTATOR n. an instrument for orientating. |
| ORIENTEERS | • orienteers n. Plural of orienteer. • ORIENTEER v. to take part in orienteering, the sport of making one's way quickly across difficult country with the help of map and compass. |
| ORIFLAMMES | • oriflammes n. Plural of oriflamme. • ORIFLAMME n. an inspiring standard or symbol; the orange-red flag of the Abbey of St Denis, used as standard by the early kings of France. |
| ORIGINALLY | • originally adv. (Not comparable) As it was in the beginning. • originally adv. In an original manner. • ORIGINAL adv. relating to the origin. |
| ORIGINATED | • originated v. Simple past tense and past participle of originate. • ORIGINATE v. to have an origin. |
| ORIGINATES | • originates v. Third-person singular simple present indicative form of originate. • ORIGINATE v. to have an origin. |
| ORIGINATOR | • originator n. Someone who originates, creates or founds something. • ORIGINATOR n. one who originates. |
| ORINASALLY | • ORINASAL adv. of or relating to the mouth and nose, also ORONASAL. |
| ORISMOLOGY | • orismology n. (Rare, lexicography) The explanation of technical terms. • orismology n. (Rare, lexicography) Technical terms collectively; terminology. • ORISMOLOGY n. the science of defining technical terms. |