megaphones
Cones for shouting
Megaphones are cone-shaped devices that amplify the voice, used to address crowds or be heard at a distance.
Cheerleaders, coaches, and protest organizers use megaphones to project their voices: She grabbed a megaphone and led the chant.
Modern versions are battery-powered with built-in amplifiers.
Figuratively, anything that amplifies a message functions as a megaphone: Social media gave extremists a megaphone.
Portable voice amplification device
- loudspeakerSound amplification device
- amplifierSignal-strengthening electronic device
- volumeAmount of space filled
- projectionSomething that extends outward
broadcast · PA system · sound projection · cone · speaker · decibels · audibility · range
Team spirit performer
- coachOne who instructs
- sidelineSecondary business pursuit
- pep rallySchool morale-boosting gathering
- stadiumLarge venue for spectators
referee · timeout · halftime · team captain · athletic director · crowd control · game day · spirit squad
Public display of opinion
- rallyGathering for a cause
- marchRhythmic group walk
- activistVigorous cause champion
- chantingRhythmic repetitive vocalization
slogans · crowd · organizer · picket line · civil rights · union · strike · dissent
Removal from danger
- lifeguardPaid swimming supervisor
- rescueSave from harm
- beach patrolSeaside safety personnel
- crowd controlRegulating gathered masses
emergency services · warning · alert · disaster response · firefighter · safety officer · search and rescue · public safety
bullhorn
Portable voice amplification device
- loudspeakerSound amplification device
- amplifierSignal-strengthening electronic device
- volumeAmount of space filled
projection · broadcast · PA system · sound projection · cone · speaker · decibels · audibility · range · microphone
cheerleader
Team spirit performer
stadium · referee · timeout · halftime · team captain · athletic director · crowd control · game day · spirit squad · football
demonstration
Public display of opinion
chanting · slogans · crowd · organizer · picket line · civil rights · union · strike · dissent · social movement
evacuation
Removal from danger
- lifeguardPaid swimming supervisor
- rescueSave from harm
- beach patrolSeaside safety personnel
crowd control · emergency services · warning · alert · disaster response · firefighter · safety officer · search and rescue · public safety · first responder
ship horn
Vessel's audible warning
maritime · deck · vessel · pier · dockside · crew · boat · sailing · port authority · coastguard
- event safetycrowd control, crowd management, crowd barriers, crowd flow, evacuation plan
- campaigningcandidate, campaign signs, canvassing, campaign manager, fundraising
- noisemakersnoisemaker, air horn, bell, buzzer, kazoo
- school spiritmascot, pep rallies, school pride, mascots, pep rally
- tailgatingtailgate, grill, cooler, cornhole, parking lot
- loud noisemakerssirens, alarms, horns, klaxons, buzzers
megaphonesmicrophones
Audio input devices
listening devices · hearing aids · receivers · earpieces · stethoscopes