spotter

noun spot·ter \ˈspä-tər\

: someone who looks for a particular type of person or thing

: a person who watches and helps someone who is exercising in order to help prevent injuries

Full Definition of SPOTTER

: one that makes or applies a spot (as for identification)

: one that looks or keeps watch: as

a : one that locates enemy targets

b : a civilian who watches for approaching airplanes

c : a person who assists another during exercise (as to prevent injury)

: one that removes spots

: one that places something on or in a desired spot

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