Thesaurus / megaphones
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

EXAMPLE SENTENCES FROM THE WEB

Automobiles with megaphones and placards summon him from the street corners.
EUROPE AFTER 8:15H. L. MENCKEN, GEORGE JEAN NATHAN AND WILLARD HUNTINGTON WRIGHT
They formed their hands into megaphones, calling loud and long, but there was no answer save a long drawn out echo.
TOM SLADE ON THE RIVERPERCY K. FITZHUGH
The megaphones of Cape Wrath had announced that a fog was coming.
Partly, no doubt, because the imperious young men with megaphones would not leave us alone.
YOUR UNITED STATESARNOLD BENNETT
They keep using ideas as megaphones to proclaim their own superiorities.
GARGOYLESBEN HECHT
You can afford to send out engraved invitations; I have to gather in my people with brass bands and megaphones.
THE DELUGEDAVID GRAHAM PHILLIPS
The reporters all got hold of it with their megaphones, and made the nation sick of the sound of its name.
The publicity gentlemen with megaphones, each before his own stupendous attraction, roared like Niagara in his ears.
Telephones, megaphones and gramophones were ringing throughout the building.
I megaphones through my hands, just as enthusiastic as anybody on the pier.
TORCHYSEWELL FORD