clean
Clean
chlorine
clean
The word that rhymes with angel and means free is "mangel."
color-free
quay
rain water doesnt have the salt of salt water
sterile
Free is the closest rhyme that's a perfect synonym. The closest words I can think of that are perfect rhymes are reap, keep, and upkeep.
free throw
Chain free?
Free kicks.
The tree that rhymes with "three" is a birch tree.
If the ice is free of impurities and the pressure is standard atmospheric pressure, then it melts at zero