The Collaborative International Dictionary of English v.0.48:
Spot \Spot\ (sp[o^]t), n. [Cf. Scot. & D. spat, Dan. spette, Sw.
spott spittle, slaver; from the root of E. spit. See Spit
to eject from the mouth, and cf. Spatter.]
1. A mark on a substance or body made by foreign matter; a
blot; a place discolored.
Out, damned spot! Out, I say! --Shak.
2. A stain on character or reputation; something that soils
purity; disgrace; reproach; fault; blemish.
Yet Chloe, sure, was formed without a spot. --Pope.
3. A small part of a different color from the main part, or
from the ground upon which it is; as, the spots of a
leopard; the spots on a playing card.
4. A small extent of space; a place; any particular place.
"Fixed to one spot." --Otway.
That spot to which I point is Paradise. --Milton.
"A jolly place," said he, "in times of old!
But something ails it now: the spot is cursed."
5. (Zool.) A variety of the common domestic pigeon, so called
from a spot on its head just above its beak.
(a) A sciaenoid food fish (Liostomus xanthurus) of the
Atlantic coast of the United States. It has a black
spot behind the shoulders and fifteen oblique dark
bars on the sides. Called also goody, Lafayette,
masooka, and old wife.
(b) The southern redfish, or red horse, which has a spot
on each side at the base of the tail. See Redfish.
7. pl. Commodities, as merchandise and cotton, sold for
immediate delivery. [Broker's Cant]
Crescent spot (Zool.), any butterfly of the family
Melitaeidae having crescent-shaped white spots along the
margins of the red or brown wings.
Spot lens (Microscopy), a condensing lens in which the
light is confined to an annular pencil by means of a
small, round diaphragm (the spot), and used in dark-field
illumination; -- called also spotted lens.
Spot rump (Zool.), the Hudsonian godwit (Limosa
Spots on the sun. (Astron.) See Sun spot, ander Sun.
On the spot, or Upon the spot, immediately; before
moving; without changing place; as, he made his decision
on the spot.
It was determined upon the spot. --Swift.
Syn: Stain; flaw; speck; blot; disgrace; reproach; fault;
blemish; place; site; locality.