Synonyms for Quenching:

n.

quenching (noun)
extinguishing, extinction.

v.

satisfying (verb)
satisfying, Slaking, appeasing, Allaying, Satiating, stuffing, Glutting, Gorging, Sating, Engorging, gratifying, Saturating, filling.

Other synonyms:

Other relevant words:
extinguishing, extinction.