- amplification, elaboration - addition of extra material or illustration or clarifying detail; "a few remarks added in amplification and defense"; "an elaboration of the idea followed"
--1 is a kind of expansion, expanding upon
- amplification, gain - the amount of increase in signal power or voltage or current expressed as the ratio of output to input
--2 is a kind of increase, increment
--2 has particulars: loop gain - amplification - (electronics) the act of increasing voltage or power or current
--3 is a kind of increase, step-up