High hum Synonyms

High replaced

high-pitched hum

Definitions for High

(adjective) extending to a great distance upward
(adjective) being at a higher level than average
(adjective) located at a greater height than average or usual

HH abbreviation

HH is an abbreviation for High Hum

What does HH stand for?

HH stands for "High Hum"

Hum replaced

Definitions for Hum

(noun) a monotonous sound like that of an insect in motion
(verb) to be copiously supplied
(verb) to fly, turn, or move rapidly with a fluttering or vibratory sound