to extend or expand the scope of something beyond its proper limits; to exaggerate or magnify. This is often used to describe political movements or investigations where the number of people targeted becomes too wide.

an electronic device for increasing the power of a signal, especially for audio

electronic device used to increase the power or voltage of an input signal

to increase the number of students admitted to a school or university

The front portion of a sound amplification system, primarily used as a switch to select between various input sources.

magnifying glass; magnascope

an expanded or enlarged conference that includes participants beyond the usual regular members

To reproduce or manufacture on an extended scale; the process of expanding production beyond its previous limits