espial vs uncovering

espial and uncovering both are nouns.

Word	Noun	Adjective	Verb	Adverb
espial	Yes	No	No	No
uncovering	Yes	No	No	No

As nouns, uncovering is a hypernym of espial; that is, uncovering is a word with a broader meaning than espial:

Other hypernyms of espial include discovery, find.

espial (noun)	uncovering (noun)
the act of detecting something; catching sight of something	the act of discovering something
	the removal of covering