High-altitude mission Synonyms

High-altitude replaced

Definitions for High-altitude

(adjective) occurring at or from a relative high altitude

Synonyms for phrase

HM abbreviation

HM is an abbreviation for High-altitude Mission

What does HM stand for?

HM stands for "High-altitude Mission"

Mission replaced

high-altitude work

Definitions for Mission

(noun) a specific task with which a person or group is charged
(noun) an operation that is assigned by a higher headquarters
(noun) a special assignment that is given to a person or group