turn up vs show up

turn up and show up both are verbs.

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

As verbs, turn up and show up are synonyms defined as:

Other synonyms of turn up include come on, come out, surface.

turn up (verb)	show up (verb)
appear or become visible; make a showing	appear or become visible; make a showing
bend or lay so that one part covers the other	be or become visible or noticeable
find by digging in the ground
discover the location of; determine the place of; find by searching or examining
be shown or be found to be