High-altitude flight Synonyms

Definitions for High-altitude

(adjective) occurring at or from a relative high altitude

Synonyms for phrase

HF abbreviation

HF is an abbreviation for High-altitude Flight

What does HF stand for?

HF stands for "High-altitude Flight"

Definitions for Flight

(noun) travel through the air by the use of wings
(noun) the act or an instance of getting free from danger or confinement
(noun) an instance of traveling by air