What is the meaning of booming?

verb

• Make a resonant sound, like artillery.
  • usage: "His deep voice boomed through the hall"
  • synonyms: boom, din
• Hit hard.
  • usage: "He smashed a 3-run homer"
  • synonyms: smash, nail, boom, blast
• Be the case that thunder is being heard.
  • usage: "Whenever it thunders, my dog crawls under the bed"
  • synonyms: thunder, boom
• Make a deep hollow sound.
  • usage: "Her voice booms out the words of the song"
  • synonyms: boom, boom out
• Grow vigorously.
  • usage: "The deer population in this town is thriving"; "business is booming"
  • synonyms: boom, thrive, flourish, expand

adjective

• Very lively and profitable.
  • usage: "flourishing businesses"; "a palmy time for stockbrokers"; "a prosperous new business"; "doing a roaring trade"; "a thriving tourist center"; "did a thriving business in orchids"
  • synonyms: flourishing, palmy, prospering, prosperous, roaring, thriving
• Used of the voice.
  • synonyms: stentorian