A wrench, implementing a ratchet mechanism, usually used with a set of sockets to engage the head of a bolt or similar.

(informal, finance) An initial, relatively low, rate of interest on an adjustable-rate mortgage designed to attract borrowers.

(philosophy) The proposition that scientific theories, and any other claims to knowledge, can and should be rationally criticized, and, if they have empirical content, can and should be subjected to tests which may falsify them.

(philosophy) A specific form of rationality focusing on the most efficient or cost-effective means to achieve a specific end, but not in itself reflecting on the value of that end.

(conjunctive) In any case, anyway, anyhow, regardless; used to discard or qualify a previous thought.

The monetary amount paid per unit of production in the reward scheme of piece work, contrasting with hourly wage and salary.

The frequency with which an engineered system or component fails, expressed for example in failures per hour.

(travel) The published full price for a room in a hotel that has not been pre-booked.

To esteem too highly; to give greater praise than due.

Either of two venomous rattlesnakes, of the genus Crotalus, from southern United States and Mexico, that have diamond-shaped markings on their backs: Crotalus adamanteus and Crotalus atrox.