spare -- (save or relieve from an experience or action; "I'll spare you from having to apologize formally")
spare, give up, part with, dispense with -- (give up what is not strictly needed; "he asked if they could spare one of their horses to speed his journey")
spare -- (use frugally or carefully)
Overview of adj spare
The adj spare has 6 senses
spare, trim -- (thin and fit; "the spare figure of a marathon runner"; "a body kept trim by exercise")
excess, extra, redundant, spare, supererogatory, superfluous, supernumerary, surplus -- (more than is needed, desired, or required; "trying to lose excess weight"; "found some extra change lying on the dresser"; "yet another book on heraldry might be thought redundant"; "skills made redundant by technological advance"; "sleeping in the spare room"; "supernumerary ornamentation"; "it was supererogatory of her to gloat"; "delete superfluous (or unnecessary) words"; "extra ribs as well as other supernumerary internal parts"; "surplus cheese distributed to the needy")
spare, free -- (not taken up by scheduled activities; "a free hour between classes"; "spare time on my hands")
spare -- (kept in reserve especially for emergency use; "a reserve supply of food"; "a spare tire"; "spare parts")
bare, scanty, spare -- (lacking in amplitude or quantity; "a bare livelihood"; "a scanty harvest"; "a spare diet")
plain, bare, spare, unembellished, unornamented -- (lacking embellishment or ornamentation; "a plain hair style"; "unembellished white walls"; "functional architecture featuring stark unornamented concrete")