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

(typography) The distance between the baseline and midline in a typeface, typically equal to the height of the lower-case letter x.

(Australia) The minimum height under a house which would allow for another residence underneath, as mandated by local council.

(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.

(printing) In typefounding, the length of a type from its face to its foot.

The height above sea level of a given pressure in the atmosphere

(Tyneside, idiomatic, literally) High up. / (Tyneside, idiomatic, figuratively) Upset, angry.

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

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

(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.