booming

Concise Oxford English Dictionary © 2008 Oxford University Press:
boom1

▶noun a loud, deep, resonant sound. ▶verb make this sound.

– derivatives
boominess noun,
booming adjective,
boomy adjective.

– origin ME: ult. imitative; perh. from Du. bommen ‘to hum, buzz’.

Concise Oxford English Dictionary © 2008 Oxford University Press:
boom2

▶noun a period of great prosperity. ▶verb experience a boom: business is booming.

– derivatives
boomy adjective.

– origin C19: prob. from boom1.

Concise Oxford English Dictionary © 2008 Oxford University Press:
boom3

▶noun

• 1 a pivoted spar to which the foot of a vessel's sail is attached.

• 2 a movable arm carrying a microphone or film camera.

• 3 a floating beam used to contain oil spills or to form a barrier across a harbour mouth.

– origin C16: from Du., ‘beam, tree, pole’; rel. to beam.