to refrain from harming or destroying; leave uninjured; forbear to punish, hurt, or destroy: to spare one's enemy.
2.
to deal gently or leniently with; show consideration for: His harsh criticism spared no one.
3.
to save from strain, discomfort, embarrassment, or the like, or from a particular cause of it: to spare him the bother; to spare her needless embarrassment.
4.
to refrain from, forbear, omit, or withhold, as action or speech: Spare us the gory details.
5.
to refrain from employing, as some instrument or recourse: to spare the rod.
6.
to set aside for a particular purpose: to spare land for a garden.
7.
to give or lend, as from a supply, esp. without inconvenience or loss: Can you spare a cup of sugar? Can you spare me a dollar till payday?
8.
to dispense with or do without: We can't spare a single worker during the rush hour.
9.
to use economically or frugally; refrain from using up or wasting: A walnut sundae, and don't spare the whipped cream!
10.
to have remaining as excess or surplus: We can make the curtains and have a yard to spare.
–verb (used without object)
11.
to use economy; be frugal.
12.
to refrain from inflicting injury or punishment; exercise lenience or mercy.
13.
Obsolete. to refrain from action; forbear.
–adjective
14.
kept in reserve, as for possible use: a spare part.
15.
being in excess of present need; free for other use: spare time.
16.
frugally restricted or meager, as a manner of living or a diet: a spare regime.
17.
lean or thin, as a person.
18.
scanty or scant, as in amount or fullness.
19.
sparing, economical, or temperate, as persons.
–noun
20.
a spare thing, part, etc., as an extra tire for emergency use.
21.
Ceramics. an area at the top of a plaster mold for holding excess slip.
[spair] 
,verb, spared, spar⋅ing, adjective, spar⋅er, spar⋅est, noun 