(nautical) Keeping the sails full and steering by the wind.

The predecessor of the castle, having a raised earth mound (the motte) topped with a tower (or donjon), and a wooden ring fortification surrounding a courtyard (the bailey).

A system for verifying that the bearer of a debit card or credit card is the owner, involving cards that contain a silicon chip storing the PIN of the card; the bearer confirms ownership of the card by inserting it into a machine and entering the PIN, which is compared with the one stored on the chip.

A genre of popular fiction in which characters with an affluent lifestyle have frequent explicit sexual encounters.

From one place to another and back again.

Alternative form of Mason-Dixon Line

The movement (of someone or something) forward followed by a return to the same position. May refer to a concept such as an emotional state or a relationship as well as a physical thing.

(especially UK) Alternative form of carrot and stick

(UK, Australia, New Zealand, games) A two-player game played on a three-by-three grid, in which players take it in turns to place their respective symbol (either a nought or a cross) in a cell of the grid, the objective being to form a row, column or diagonal of three of one's own symbol.

The limits of a piece of land as defined by reference to lines and/or points on the land.