hand line vs handline

hand line and handline both are nouns.

Word	Noun	Adjective	Verb	Adverb
hand line	Yes	No	No	No
handline	Yes	No	No	No

As nouns, hand line and handline are synonyms defined as:

hand line (noun)	handline (noun)
a fishing line managed principally by hand	a fishing line managed principally by hand
	(climbing) a line that can be hung onto with hands while climbing up or down a steep or slick section for limited protection.