n. One that applies spots.n. One that looks for, locates, and reports something, as:n. A military or civil defense lookout.n. Informal A person hired to detect dishonest acts by employees, as in a bank.n. Sports One who identifies players on the field, as for a radio or television announcer.n. Sports One who is responsible for watching and guarding a performer during practice to prevent injury, as in gymnastics or weightlifting.n. One employed by a dry cleaner to remove spots.