clearing vs purging

clearing and purging both are nouns.

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

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

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

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

clearing (noun)	purging (noun)
the act of freeing from suspicion	an act of removing by cleansing; ridding of sediment or other undesired elements
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

clearing (adjective)	purging (adjective)
	serving to purge or rid of sin