spare in WordNet English dictionary

1. lacking in amplitude or quantity
   "a bare livelihood"; "a scanty harvest"; "a spare diet"
   bare  scanty  spare 
   
2. lacking embellishment or ornamentation
   "a plain hair style"; "unembellished white walls"; "functional architecture featuring stark unornamented concrete"
   plain  bare  spare  unembellished  unornamented 
   
3. 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"
   excess  extra  redundant  spare  supererogatory  superfluous  supernumerary  surplus 
   
4. not taken up by scheduled activities
   "a free hour between classes"; "spare time on my hands"
   spare  free 
   
5. thin and fit
   "the spare figure of a marathon runner"; "a body kept trim by exercise"
   spare  trim 
   
6. kept in reserve especially for emergency use
   "a reserve supply of food"; "a spare tire"; "spare parts"
   spare 
   

1. give up what is not strictly needed
   "he asked if they could spare one of their horses to speed his journey"
   spare  give up  part with  dispense with 
   
2. refrain from harming
   spare  save 
   
3. use frugally or carefully
   spare 
   
4. save or relieve from an experience or action
   "I'll spare you from having to apologize formally"
   spare 
   

1. an extra car wheel and tire for a four-wheel vehicle
   fifth wheel  spare 
   
2. a score in tenpins; knocking down all ten after rolling two balls
   spare 
   
3. an extra component of a machine or other apparatus
   spare part  spare