ノットノットMeanings1nounknot (unit of speed)usually written using kana aloneA unit of speed equal to one nautical mile per hour, used in maritime and aviation contexts.船ふねは20ノットの速はやさで進すすんでいる。The ship is moving at a speed of 20 knots.風ふう速そくは15ノットに達たっした。The wind speed reached 15 knots.