SynonymDefinitionAntonym.com - English Synonym Dictionary

A humming noise

An Islamic fundamentalist group in Pakistan that fought the Soviet Union in Afghanistan in the 1980s; now operates as a terrorist organization primarily in Kashmir and seeks Kashmir's accession by Pakistan

The state of being or appearing to be actively engaged in an activity

Sing with closed lips

Make a low continuous sound

Sound with a monotonous hum

Be noisy with activity