clearing vs purgation

clearing and purgation both are nouns.

Word	Noun	Adjective	Verb	Adverb
clearing	Yes	No	No	No
purgation	Yes	No	No	No

As nouns, purgation is a hyponym of clearing; that is, purgation is a word with a more specific, narrower meaning than clearing:

clearing: the act of freeing from suspicion
purgation: the act of clearing yourself (or another) from some stigma or charge

Other hyponyms of clearing include purge, purging, exoneration, vindication, whitewash.

clearing (noun)	purgation (noun)
the act of freeing from suspicion	purging the body by the use of a cathartic to stimulate evacuation of the bowels
the act of removing solid particles from a liquid	the act of clearing yourself (or another) from some stigma or charge
a tract of land with few or no trees in the middle of a wooded area	a ceremonial cleansing from defilement or uncleanness by the performance of appropriate rites