height /haɪt/noun 10forms 1phrases 1 noun10 •how tall something is, from its bottom to its top •The vertical distance from the ground to the highest part of a standing person or animal (withers in the case of a horse).— What's your height? — 180 centimetres. •The minimum distance from a vertex of a triangle to (the extension of) the edge opposite, namely along a line perpendicular to the edge.The area of a triangle is "a half base times height". •The amplitude of a sinusoid. •The distance of something above the ground or some other chosen level.We flew at a height of 15 000 meters.I'm afraid of heights. •A high point.At length they arrived at the open road, skirted by a wide heath, bounded by the rising heights of the undulating country. — 1834 •A mountain, especially a very high one. •An area of land at the top of a cliff. •(figurative) The highest point or maximum degree.She's at the height of her career. •A quality of vowels, indicating the vertical position of the tongue relative to the roof of the mouth; in practice, the first formant, associated with the height of the tongue. formsheights Phrases with height up a heightHigh up.