equalizer
nounUK /ˈiː.kwə.laɪ.zər/
US /ˈiː.kwə.laɪ.zɚ/
A thing that makes two sides the same or fair.
The referee acted as an equalizer, making sure both teams played fairly.
OTHER MEANINGS
2. A device that adjusts the balance of sound frequencies in audio.
He turned up the bass on the equalizer to make the music sound richer.
3. A goal that ties the score in a game.
She scored the equalizer in the last minute of the match.
4. A person or thing that brings people to the same level.
Education is a great equalizer in society.