› the distance from the top to the bottom of something, or the quality of being tall: [C] The heights of the two towers are equal. [U] She’s of average height (= neither unusually short nor tall). › Height also refers to the distance that something is above a surface: [U] You can adjust the height of the chair with this lever. the height of › The height of a condition or event is when it is most full of activity or when it is at its top level of achievement: She was at the height of her career when they met. the height of › The height of also means an extreme example of: the height of luxury/power/stupidity