A method of estimating the position of a ship or aircraft by applying estimates of the distance and direction travelled to a previously known position. In respect to ships/boats, it excludes the effect of wind and current on the vessel. Compare with estimated position. Abbreviation: DR

(idiomatic) A street or path that goes nowhere or is blocked on one end. / A position that offers no hope of progress. / A split end in the hair.

(idiomatic, broadcasting) An unintended interruption in a broadcast during which nothing is transmitted: a silent period on radio or a silent period with no picture on television.

Going nowhere; blocked.

(US) To come to a dead-end.

A road with no exit. / (by extension, figuratively) A position that offers no hope of progress.

(idiomatic) a close race or contest in which no winner is apparent

Unremitting heavy weight that does not move. / (nautical) The largest weight of cargo a ship is able to carry; i.e, the weight of a ship when fully loaded minus its weight when empty.

(of a shot in snooker or other cue sports) With just enough weight for a ball to drop into a pocket, or come to rest in a precisely determined position.

(informal) A practically guaranteed outcome.