Definitions:
a loud, deep, resonant sound

make a loud, deep, resonant sound

used to imitate a loud, deep, resonant sound

a period of great prosperity or rapid economic growth

experience a period of great prosperity or rapid economic growth

a pivoted spar to which the foot of a vessel's sail is attached, allowing the angle of the sail to be changed.

a movable arm over a television or film set, carrying a microphone or camera

a floating beam used to contain oil spills or to form a barrier across the mouth of a harbour or river.