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

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.