| ORAD | • orad adj. (Anatomy) Located towards the oral opening (the mouth). • orad adv. (Anatomy) Towards the oral opening (the mouth). • ORAD adv. towards the mouth. |
| ORAL | • oral adj. (Relational) Relating to the mouth. • oral adj. (Relational) Spoken rather than written. • oral n. (Countable) A spoken test or examination, particularly in a language class. |
| ORBS | • orbs n. Plural of orb. • ORBs n. Plural of ORB. • ORB v. to form into a sphere. |
| ORBY | • orby adj. (Obsolete) having characteristics of an orb. • ORBY adj. resembling a sphere. |
| ORCA | • orca n. A sea mammal (Orcinus orca) related to dolphins and porpoises, commonly called the killer whale. • ORCA n. a marine mammal, also ORC. |
| ORCS | • orcs n. Plural of orc. • Orcs n. Plural of Orc. • ORCs n. Plural of ORC. |
| ORDO | • ordo n. (Music) A musical phrase constructed from one or more statements of one modal pattern and ending in a rest. • ordo n. (Roman Catholicism) A calendar which prescribes the Mass and office which is to be celebrated each day. • ordo n. (Biology, taxonomy) A category in the classification of organisms, ranking below classis and above familia. |
| ORDS | • ords n. Plural of ord. • ORD n. (obsolete) a point of a weapon. |
| ORES | • ores n. Plural of ore. • öres n. Plural of öre. • ORE n. rock containing a valuable metal, also OWRE. |
| ORFE | • orfe n. A fish, the ide, Leuciscus idus. • ORFE n. (German) a golden-yellow fish, a kind of carp. |
| ORFS | • orfs n. Plural of orf. • Orfs prop.n. Plural of Orf. • ORFs n. Plural of ORF. |
| ORGS | • orgs n. Plural of org. • ORG n. (short for) an organization. |
| ORGY | • orgy n. Originally, secret rites or ceremonies, typically involving riotous and dissolute behaviour, including… • orgy n. A gathering of people to engage in group sex. • orgy n. Excessive indulgence in a specified activity. |
| ORLE | • orle n. (Heraldry) A bordure that runs around the outline of a shield without touching the edge. • orle n. (Heraldry) The wreath, or chaplet, surmounting or encircling the helmet of a knight and bearing the crest; a torse. • orle n. (Architecture) A fillet under the ovolo of a capital. |
| ORRA | • orra adj. (Now Scotland) Superfluous; odd, unmatched, left over. • orra adj. (Now Scotland) Of people: idle, unemployed, disreputable. • ORRA adj. (Scots) odd, not matched. |
| ORTS | • orts n. Plural of ort. • ORTs n. Plural of ORT. • ORT n. a leftover from a meal. |
| ORYX | • oryx n. Any of several antelopes, of the genus Oryx, native to Africa, which have long, straight horns. • Oryx prop.n. A taxonomic genus within the family Bovidae – the oryxes. • ORYX n. a kind of African antelope. |
| ORZO | • orzo n. A form of pasta the size and shape of grains of rice or barley; often used in soups. • ORZO n. (Italian) pasta in the form of small pieces like barley. |