meaning of amplify
amplify The verb amplify means to crank up the volume. Speakers amplify, or raise, the volume of the noise coming through a microphone so that everyone at the rock show can hear. Amplify comes from the Old French word amplifier meaning to enlarge or expand.. It refers to making a sound âexpand,â but it can also crank up something like a disagreement â if you spread rumors, you might amplify an argument.