In
military or
demolitions work, the capitalized
HE is used as an
abbreviation (and vocal shorthand) for
High Explosive. This is used both to differentiate a substance from, say, an inert solid or a
low explosive, as well as (most often) to denote a type of
ammunition. For example, the
HEAT tank main gun round is a
High Explosive,
Anti-Tank. Some examples of HE substances include: