Meaning

• A low-pitched, resonant sound, such as of an explosion.

  "The boom of the surf."

• A rapid expansion or increase.

  "You should prepare for the coming boom in the tech industry."

• One of the calls of certain monkeys or birds.

Meaning

• To make a loud, hollow, resonant sound.

  "I can hear the organ slowly booming from the chapel."

• (of speech) To exclaim with force, to shout, to thunder.

• To make something boom.

  "Men in grey robes slowly boom the drums of death."

• To publicly praise.

• To rush with violence and noise, as a ship under a press of sail, before a free wind.

Meaning

• Used to suggest the sound of an explosion.

• Used to suggest something happening suddenly and unexpectedly.