spotter
Spotter (noun) means someone who watches for and identifies something, often as a lookout or assistant. Example: “A plane spotter with binoculars stood at the end of the runway.”
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.
Word forms
- Plural
- spotters
Fill the gap
Can you complete this real example?
A plane _____ with binoculars stood at the end of the runway.
Etymology
Simply spot plus the agent suffix "-er" — someone who spots things.