- AROAR
- Thunderous
- Cheering wildly
- Sounding like the surf
- Clamorous
- Loudly
- With great noise
- Cacophonous
- Screaming at the top of one's lungs
- Cheering loudly
- Like a loud crowd
- At the top of one's lungs
- Bellowing
- Booming
- Loud like a packed stadium
- Loud, as a crowd
- Screaming
- Screaming loud
- Thundering
- Like many crowds after a touchdown
- At full volume
- Tumultuous
- Wildly cheering
- Clamoring
- Cheering
- Yelling, as a crowd
- Like the pounding surf
- Supremely noisy
- Like crowds doing the wave, often
- Boisterous
- Loud, as the surf
- Making a lot of noise
- Like loud crowds
- Loud, like a crowd
- Loud, like the ocean
- Like a partisan crowd
- Loud
- Howling with laughter
- Crying out loud
- Like thundering crowds
- Full of noise
- Like a loud crowd of rowdies
- Noisy
- Like noisy fans
- Let out ___ (vocalize like the MGM mascot)
- Like a stadium, at times
- In full voice
- Like an excited crowd
- Chaotic
- Like a partisan crowd, at times
- Really noisy
- Shouting, as a crowd
- Like Niagara Falls
- Like a crowd after a home-team touchdown
- Like heavy surf
- Cheering in a big way
- Like a cheering crowd
- Like a stadium full of cheering fans
- Like an excited World Series crowd
- Bustling with noise
- Cacophonous, as a crowd
- Cheering noisily
- Clamoring en masse
- Deafening
- Like a supportive crowd
- Like bowls, at times
- Like an enthusiastic crowd
- Riotous, as a crowd
- Cheering like crazy
- Like a cheering capacity crowd
- Like a noisy stadium
- Rocking the stadium
- Cheering deafeningly
- Like a crowd in full voice
- Like a raucous crowd
- Cheering and yelling, as a crowd
- Like Times Square on New Year's Eve
- Like a delirious crowd
- Loudly cheering
- Like the crowd after a home team homer
- Like the sea when waves are crashing
- Superloud
- Noisy, as a crowd
- Really loud
- Very loud
- Disorderly
- Plenty loud
- Like some crowds
- Like a noisy crowd
- Loud, like the surf
- Vociferous
- Quite loud
- Clamorous, as a crowd
- Let out __ (bellow)
- Like a World Cup crowd
- Like a crowd after a homer by the home team
- Like excited fans
- Like some big falls
- Very noisy.
- Riotous.
- Descriptive of Niagara Falls sound effect.
- Raging noisily.
- Resounding with 24 Across.
- Resounding with noise.
- Making a noisy din.
- In a tumult.
- In a turmoil.
- Howling.
- Making a din.
- Bursting with tumultuous acclaim.
- Descriptive of a convention at times.
- In turmoil
- Shouting
- Cheering, as a crowd
- In noisy confusion
- Loudly clamoring
- Like big planes in flight
- Like Churchill Downs at Derby time
- Like sports crowds
- Coming on like a lion
- Like an angry lion
- Like an injured pride
- Like stormy seas
- Like surf in a storm
- Like crashing waves
- Like a football crowd
- Like football crowds
- Noisy, to Noyes
- Full of sound
- Laughing loudly
- Reboant
- Sounding like Niagara
- With crashing noises
- Like Rich Stadium at playoff time
- Like appreciative fans
- Like a stadium after a homer
- Like a stadium crowd
- Loud, as a stadium
- Like the surf
- Sounding like lions
- Like World Cup crowds
- Loud, as a stadium crowd
- Creating a din
- Like stadiums after touchdowns
- Like monster trucks or their spectators
- Like crowds in the heat of a match
- Like the crowd at a campaign rally
- Din-making
- Like MGM's lion
- Like Super Bowl crowds
- More than loud
- Like a crowd when the headliner takes the stage
- Like excited fans in stadiums
- Erupting with noise
- Like a home crowd on a walk-off hit
- Thunderous, as a crowd
- Like cheering audiences
- Full-throated
- Loudly prideful?
- Rocking with laughter
- Noisy, like a jungle
- Cheering noisily, as a stadium full of fans
- Cheering wildly, as a stadium crowd
- Like a loud waterfall
- Let out _____ (bellow like a lion)
- Like a raucous stadium crowd
- Like Niagara Falls, sound-wise
- Like an excited stadium
- Making tons of noise
- Like a thunderous crowd
- Like many sports crowds
- Cheering, perhaps
- Stadium atmosphere
- Clamorous, as a stadium crowd
- Cacophonous, as an ocean
- Supporting the home team, e.g.
- Like a boisterous crowd
- Bustling with noise or excitement
- Loud, like a waterfall
- In a hullabaloo
- Like a homer's crowd
- Loud, like fans
- Like enthusiastic fans
- Like fans after a touchdown
- Like the scoring team's fans
- Reacting to a home run, perhaps
- Reacting to a touchdown, perhaps
- Cheering raucously
- Drowning out the quarterback, say
- Howling, poetically
- Like a packed stadium, often
- Like the stadium after a touchdown
- Reacting to a touchdown, maybe
