noun
spotter
SPOT-uh
noun
1
Someone who watches for and identifies something, often as a lookout or assistant.
"A plane spotter with binoculars stood at the end of the runway."
"The gym had a spotter standing by in case he dropped the bar."
2
A second person in a sniper or shooting team who tracks targets and feeds information to the shooter.
"The spotter called out the wind conditions before the shot."
3
Someone who guides a driver or crane operator backing into a tight space.
"The spotter waved the truck back until it cleared the wall."
How to Use Spotter
Learner’s notesIn plain EnglishA person whose job is to watch, notice, or help guide someone else by keeping an eye on things.
Common pairings
weight spotter
plane spotter
talent spotter
Word Forms
spotters plural
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A plane _____ with binoculars stood at the end of the runway.
Etymology
Simply spot plus the agent suffix "-er" — someone who spots things.