Noun
One who spots.
Source: Webster's dictionaryMy workout is always with a trainer because, quite honestly, I don't think most people are motivated enough to do what they need to on their own. You either need a spotter or you need a trainer. You need somebody there to push you to get that extra five. Paul Stanley
He was participating in a virtual race for fun after his two kids went to bed on Easter and used a racial slur while addressing his spotter. Source: Internet
Free weight exercises that require a spotter are not permissible. Source: Internet
Catapult-launched spotter planes like Arado Ar 196 twin-float seaplanes were manned by the so-called Bordfliegergruppen ("shipboard flying group"). Source: Internet
Fire control for these weapons was provided by both spotter aircraft and by DeTeGerät radar sets installed at Blanc Nez and Cap d’Alprech. Source: Internet
Each year, a revised version of the books would be published and the spotter would need to re-underline every aircraft seen. Source: Internet