bottom
...better spare at the brim than at the bottom

effort
to spare no effort

enough
to have enough and to spare

part
...the spare parts of the machine are under that table

pocket
spare your pocket!

profession
spare me these professions

rake up
to rake up some spare cash

review
he reviews in his spare time

rib
spare ribs

rod
spare the rod and spoil the child

spare
spare anchor

thought
to spare a thought for somebody

time
with time to spare