avocation vs pursuit

avocation and pursuit both are nouns.

Word	Noun	Adjective	Verb	Adverb
avocation	Yes	No	No	No
pursuit	Yes	No	No	No

As nouns, avocation and pursuit are synonyms defined as:

Other synonyms of avocation include by-line, hobby, sideline, spare-time activity.

As nouns, pursuit is a hypernym of avocation; that is, pursuit is a word with a broader meaning than avocation:

avocation: an auxiliary activity
pursuit: a diversion that occupies one's time and thoughts (usually pleasantly)

Other hypernyms of avocation include interest, pastime.

avocation (noun)	pursuit (noun)
an auxiliary activity	the act of pursuing in an effort to overtake or capture
	a diversion that occupies one's time and thoughts (usually pleasantly)
	an auxiliary activity
	a search for an alternative that meets cognitive criteria