1) Counterbalance 2) Counterpoise 3) Counterweight 4) Equalizer 1) Electronic equipment 2) Equalizer 
[mathematics] In mathematics, an equaliser, or equalizer, is a set of arguments where two or more functions have equal values. An equaliser is the solution set of an equation. In certain contexts, a difference kernel is the equaliser of exactly two functions. == Definitions == In the latter case, one may also find {f = g = h = ···} in in...[sports] An equaliser is a term used in Commonwealth English to describe a goal or run scored by one particular team that brings the scores level. For example, if Team A is winning 1-0 against Team B, but then Team B scores and makes the match 1-1, then that goal would be deemed an equaliser. ...
a goal that makes the score even.[45]
Equaliser is British and American slang for a handgun.
The equaliser influences the sound reproduction for an individual hearing of music.