tracing vs uncovering

tracing and uncovering both are nouns.

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

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

tracing: the discovery and description of the course of development of something
uncovering: the act of discovering something

Other hypernyms of tracing include discovery, find.

tracing (noun)	uncovering (noun)
the act of drawing a plan or diagram or outline	the act of discovering something
the discovery and description of the course of development of something	the removal of covering
a drawing created by superimposing a semitransparent sheet of paper on the original image and copying on it the lines of the original image