(typography) The height of a line of text.

The distance from any point on the circle of a right circular cone to its apex.

A form of danger money paid to people working at dangerously high locations.

(aviation) The height at which a pilot performing a precision approach must decide whether to land on the runway or to perform a go-around maneuver.

(computing theory) A measure of the structural complexity of a regular expression, equal to the maximum nesting depth of stars in the expression.

(architecture) the difference between the height of the last usable floor and the total height of a building, especially for tall skyscrapers

plural of height-fear

(nautical, physics) The vertical distance between the metacentre and center of mass (conventionally taken to be positive when the metacentre is above the center of mass, and negative when the center of mass is above the metacentre) of a vessel (such as a ship or a boat) when the vessel is upright with zero bank angle; measures the vessel's tendency to resist being rolled from the upright orientation; must be positive in order for the vessel to have positive static stability.

plural of height above average terrain

(oceanographics, nautical) A standardized measure of trough-to-crest wave height calculated for the needs of seafarers; exact mathematical definition has varied over time and currently it is defined as four times the standard deviation of the surface elevation.