(often humorous) Accompanying an attacking move in (parodies of) Eastern martial arts such as karate.

plural of hi-top

Informal form of high-top.

plural of hi-score

Short for high technology.

Alternative spelling of hijack

(informal) Alternative form of high five

(US, military) Initialism of hybrid insect micro-electro-mechanical systems (MEMS): A DARPA project to control insect locomotion by placing a mechanical system inside an insect.

Alternative form of high-rise

Abbreviation of high-resolution.