Turpentine, e.g. (7)
I believe the answer is:
thinner
(Other definitions for thinner that I've seen before include "Diluting solvent" , "less strong" , "Slenderer" , "More flimsy" , "More runny" .)
I believe the answer is:
thinner
(Other definitions for thinner that I've seen before include "Diluting solvent" , "less strong" , "Slenderer" , "More flimsy" , "More runny" .)