Normally sound will spread out in as many directions as it can from a source. As it spreads out with distance, it loses energy (loudness). A megaphone is a cone that limits the directions that the sound can spread into. It concentrates the sound in the forward direction, so that it sounds louder in that direction at longer distances. The tradeoff is that the sound is much quieter off to the sides of the cone than it would be if the megaphone weren't used
Megaphone is a noun.
I'll forego the megaphone. Your megaphone could use a fresh coat of paint.
The cheerleader used a megaphone to amplify her voice during the pep rally.
Megaphone - band - was created in 2004.
Megaphone Team was created in 2003.
I used a megaphone to get the students attention.
The Braindead Megaphone has 272 pages.
A megaphone is something cheerleaders speak into to be louder!
The Braindead Megaphone was created on 2007-09-04.
Operation Megaphone happened on 2000-07-30.
The megaphone was invented in 1878 by Thomas Edison
Megaphone