Spring doing nothing (4)
I believe the answer is:
free
This could be a double definition.
'spring' is the first definition.
(thesaurus)
'doing nothing' is the second definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
Can you help me to learn more?
(Other definitions for free that I've seen before include "Exempt" , "Not under restraint" , "Not restricted or controlled" , "Untrammelled" , "See 8" .)