turn up vs appear

turn up and appear both are verbs.

Word	Noun	Adjective	Verb	Adverb
turn up	No	No	Yes	No
appear	No	No	Yes	No

As verbs, appear is a hypernym of turn up; that is, appear is a word with a broader meaning than turn up:

turn up (verb)	appear (verb)
appear or become visible; make a showing	come into sight or view
bend or lay so that one part covers the other	be issued or published
find by digging in the ground	come into being or existence, or appear on the scene
discover the location of; determine the place of; find by searching or examining	appear as a character on stage or appear in a play, etc.
be shown or be found to be	give a certain impression of being something or having a certain aspect
	(of a proposition) seem to be true, probable, or apparent
	present oneself formally, as before a (judicial) authority