Hard

A firm or paved beach or slope convenient for hauling vessels out of the water.

A tyre whose compound is softer than superhards, and harder than mediums.

Crack cocaine.

Hard labor.

"The prisoners were sentenced to three years' hard."

(of material or fluid) Having a severe property; presenting difficulty.

(personal or social) Having a severe property; presenting difficulty.

Unquestionable.

"hard evidence;  a hard requirement"

(of a road intersection) Having a comparatively larger or a ninety-degree angle.

"At the intersection, there are two roads going to the left. Take the hard left."

(manner) With much force or effort.

"At the intersection, bear hard left."

(manner) With difficulty.

"His degree was hard earned."

So as to raise difficulties.

(manner) Compactly.

"The lake had finally frozen hard."