run up vs hemstitch

run up is not a noun while hemstitch is a noun.

Word	Noun	Adjective	Verb	Adverb
run up	No	No	Yes	No
hemstitch	Yes	No	Yes	No

As verbs, hemstitch is a hyponym of run up; that is, hemstitch is a word with a more specific, narrower meaning than run up:

run up (noun)	hemstitch (noun)
	embroidery similar to drawnwork
	a stitch in which parallel threads are drawn and exposed threads are caught together in groups

run up (verb)	hemstitch (verb)
pile up (debts or scores)	sew with hemstitches
raise by using ropes and pulleys
fasten by sewing; do needlework
make by sewing together quickly
accumulate, sometimes as a debt