• WordNet 3.6
    • n spotter someone who is the first to observe something
    • n spotter a person employed to keep watch for some anticipated event
    • n spotter a worker employed to apply spots (as markers or identifiers)
    • n spotter a worker employed at a dry-cleaning establishment to remove spots
    • ***
Webster's Revised Unabridged Dictionary
    • n spotter spŏt"tẽr One who spots.
    • ***
Century Dictionary and Cyclopedia
    • n spotter One who or that which spots; specifically, one who is employed to shadow suspicious or suspected persons; a detective.
    • n spotter Specifically, a person employed to keep secret watch on the employees of a company, especially on a street railway to spot or note the number of fares (if any) not turned in by the conductor.
    • n spotter Naval, a person stationed at a suitable position above the deck to note the point at which the shots from a gun strike with reference to a target or the enemy's vessel, and thus give information as to the necessary correction of the range at which the gun-sight is set.
    • n spotter One who tints photographs.
    • n spotter A somersault in which the performer comes down upon the same spot from which he springs—that is, does not advance forward or backward.
    • ***
Chambers's Twentieth Century Dictionary
    • Spotter one who spots or detects
    • ***


Chambers's Twentieth Century Dictionary
Cf. Dut. spat, Dan. spætte; prob. conn. with spit.


In literature:

Thus it will be seen that the "spotter" up aloft has the command of a considerable tract.
"Aeroplanes and Dirigibles of War" by Frederick A. Talbot
They think," he added shrewdly, "'t you're a spotter, or something.
"Cow-Country" by B. M. Bower
I looked around to see if there were any "spotters," detectives, or secret service men on the train.
"My Discovery of England" by Stephen Leacock
We were watching the top of the hill and saw the little L4 spotter planes flying low and directing the artillery fire.
"The Biography of a Rabbit" by Roy Benson
But the financial embarrassment thereby followin' puts me under the necessity of borrowing the loan of a five-spotter.
"Punch, or the London Charivari, Vol. 156, April 30, 1919" by Various
By sending a good, smart spotter ahead we learned all about the people we've exposed.
"The Bradys and the Girl Smuggler" by Francis W. Doughty
And in the meantime, if things panned, Jimmy could be useful as a spotter.
"The Fourth R" by George Oliver Smith
These guys are spotters.
"Tom Slade with the Colors" by Percy K. Fitzhugh
Often, being strangers, the landseekers did not know that these "spotters" were not land agents.
"Land of the Burnt Thigh" by Edith Eudora Kohl
He focussed a telescope upon the tiny spotter.
"Tam O' The Scoots" by Edgar Wallace
They use 'spotters' in our country to keep the conductors and drivers honest.
"Up The Baltic" by Oliver Optic
Somewhere on one of the neighboring hills the "spotter" was telephoning the range.
"With the French in France and Salonika" by Richard Harding Davis
His spotters swept space for them and got a curve on the ship.
"The Envoy, Her" by Horace Brown Fyfe
By Jove, the fellow that first called you 'Bangs' was a bit of a spotter.
"Sinister Street, vol. 1" by Compton Mackenzie
His "spotters" were scattered along the trail all the way to Dawson.
"Alaska" by Ella Higginson
There were no "spotters" on coaching lines as on street railways.
"Stage-coach and Tavern Days" by Alice Morse Earle
On this day, when Croly Addicks had finished his modest lunch, the spotter was lurking near the exit.
"The Sin of Monsieur Pettipon" by Richard Connell
You may be a spotter, for all I know, but I don't care a hang.
"The Wreckers" by Francis Lynde
He violated the old traditions and sent "spotters" out upon the passenger trains.
"The Story of the Rome, Watertown, and Ogdensburg RailRoad" by Edward Hungerford
I left on the six o'clock train, after throwing the spotters off.
"The Iron Boys on the Ore Boats" by James R. Mears

In news:

Marion County Storm Spotter Training Tonight.
Posts With Keyword 'Storm Spotter Training.
StormTrack 5 Meteorologist Donnie Cox takes us to a recent Storm Spotter Training Class.
Storm Spotter class coming to Maplesville.
"Not only do the spotters help us do our jobs better, but the spotters are giving their community a great service," says Angela Enyedi the trainer of the class from the NWS in Jacksonville.
Every three years, the Monroe County Emergency Management Division offers a local winter weather spotter class.
We strongly encourage all county spotters and others who are interested in becoming spotters to complete this training as an introduction into basic spotting concepts.
The Hitch Spotter from Patington Inc lets you to align your ball to trailer hitch alone the first time, every time.
The National Weather Service relies on storm spotters everyday for specific weather details.
Crow Wing County will offer a Skywarn weather spotter class from 6-7:30 pm April 17 in the Crow Wing County Land Services Building, meeting room 1 and 2, 322 Laurel St.
The Style Spotters posted and curated their favorite looks on Pinterest, a website that lets users organize and share photos on virtual pinboards.
Style Spotters - who are bloggers and/or interior designers - captured images of their favorite finds as they walked the Market.
Weather spotter class is slated.
Snow spotters are needed across northern Minnesota and into north central Wisconsin.
Weather Service Is Looking For Snow Spotter Volunteers.