1. Very lively and profitable
   - flourishing, palmy, prospering, prosperous, roaring, thriving 
2. Used of the voice
   - stentorian

1. Make a resonant sound, like artillery
   "His deep voice boomed through the hall"
   - din 
2. Hit hard
   - smash, nail, blast 
3. Be the case that thunder is being heard
   - thunder 
4. Make a deep hollow sound
   "Her voice booms out the words of the song"
   - boom out 
5. Grow vigorously
   "business is booming"
   - thrive, flourish, expand

See also: full, successful

Type of: go, grow, hit, sound

Encyclopedia: Boom, Antwerp Boom Boom, Belgium Boom, Like That Boom, Boom, Boom, Boom!! Boom, Boom, Boom

• no ball
• no can do
• no chance
• no contest
• no dice
• no doubt
• no end
• no fault automobile insurance
• no fault insurance
• no longer
• no man's land
• no matter
• no matter what happens
• no more
• no one
• no problem
• no smoking
• no sweat
• no way Jose
• no-account
• no-brainer
• no-count
• no-fault
• no-fly zone
• no-frills