(law) Often in the plural: a major crime or wrongdoing, notably one subject to trial before the highest courts which may impose the gravest punishments.

plural of high touch

plural of high-hat

plural of high schooler

(gymnastics) A horizontal bar. / (figuratively) A high standard.

Having a high resolution; for example, having a large number of pixels per unit area.

plural of high profile

(racing) a type of motorcycle crash where the motorcycle tire loses, then rapidly regains traction, thus throwing the rider violently up, over, and off the motorcycle as the motorcycle spins off on its own trajectory.

plural of high explosive

plural of high note