spare

extra or additional; not needed for a particular purpose but available if it is needed

adicional, extra, de repuesto

• a spare part/thing

Collocations spare tyre · spare room

• I have a spare key in case I lose the other one.

  Tengo una llave de repuesto por si pierdo la otra.

free or available to do something; not busy with anything else

libre, disponible

• [be] spare

Collocations spare time · spare moment

• Do you have any spare time this afternoon?

  ¿Tienes tiempo libre esta tarde?

to punish someone by hitting them, especially as a form of discipline in the past

castigar (golpeando)

• [transitive]

• He was spared from corporal punishment.

  No fue castigado con golpes.

to allow someone to do something, especially when you are in a position of authority over them

permitir, dejar que

• [transitive]

• The teacher spared the class from homework.

  El profesor dejó a la clase sin tarea.

to reserve something for someone or to keep it available for them

reservar, guardar para

• [transitive]

• I'll spare a room for you.

  Reservaré una habitación para ti.

to save someone from something unpleasant or harmful; to prevent something bad from happening to someone

salvar, librar de

• [transitive]

• The doctor managed to spare his life.

  El médico logró salvarle la vida.

to reduce the amount of something, especially when this is done deliberately or officially

reducir, disminuir

• [transitive]

• The government has spared no expense in rebuilding the city.

  El gobierno no ha escatimado gastos en reconstruir la ciudad.

to show mercy or forgiveness to someone; not to punish them as much as you could have done

perdonar, mostrar misericordia a

• [transitive]

• The judge spared the young man from prison.

  El juez perdonó al joven y no lo mandó a la cárcel.