| CONTROVERTS | • controverts v. Third-person singular simple present indicative form of controvert. • CONTROVERT v. to oppose; to argue against; to dispute. |
| COUNTERFORT | • counterfort n. A buttress built against a wall. • counterfort n. A spur of a mountain range. • COUNTERFORT n. a buttress or arch supporting a retaining wall. |
| EXTORTIONER | • extortioner n. Someone who extorts; an extortionist. • EXTORTIONER n. one who practises extortion. |
| GERONTOCRAT | • gerontocrat n. A member of a gerontocracy; an aged leader, especially one clinging on to power or ruling only by virtue of age. • GERONTOCRAT n. a member of a gerontocracy, government by the aged. |
| NORTHERMOST | • northermost adj. Synonym of northernmost. • NORTHERMOST adj. most northerly, also NORTHERNMOST, NORTHMOST. |
| ORIENTATORS | • orientators n. Plural of orientator. • ORIENTATOR n. an instrument for orientating. |
| ORNITHOPTER | • ornithopter n. An aircraft that generates lift through the flapping of its wings. • ORNITHOPTER n. a birdlike archaic flying machine. |
| ORTHOCENTER | • orthocenter n. (Geometry) The intersection of the three lines that can be drawn flowing from the three corners of a… • ORTHOCENTER n. the point of intersection of the altitudes of a triangle, also ORTHOCENTRE. |
| ORTHOCENTRE | • orthocentre n. Alternative form of orthocenter. • ORTHOCENTRE n. the point of intersection of the altitudes of a triangle, also ORTHOCENTER. |
| ORTHOPTERAN | • orthopteran n. (Zoology) Any of many insects of the order Orthoptera. • ORTHOPTERAN n. any member of the Orthoptera, an order of mandibulate insects, also ORTHOPTERON. |
| ORTHOPTERON | • orthopteron n. Alternative form of orthopteran. • ORTHOPTERON n. any member of the Orthoptera, an order of mandibulate insects, also ORTHOPTERAN. |
| RESTORATION | • restoration n. The process of bringing an object back to its original state; the process of restoring something. • restoration n. The return of a former monarchy or monarch to power, usually after having been forced to step down. • restoration n. (Theology) The receiving of a sinner to divine favor. |
| RETROACTION | • retroaction n. Any action that has an influence due to a past event. • retroaction n. An opposing action; a reaction. • RETROACTION n. acting backward. |
| STOREFRONTS | • storefronts n. Plural of storefront. • STOREFRONT n. the front side of a store or store building facing a street. |
| TORRENTUOUS | • torrentuous adj. (Archaic) torrential. • TORRENTUOUS adj. torrential, also TORRENTIAL. |
| TRIMETROGON | • trimetrogon n. A single assembly of three cameras at differing angles, used for aerial photographic surveys. • trimetrogon n. An image produced by this means. • TRIMETROGON n. a technique of aerial photography using three cameras, which increases the range and detail of the coverage. |