handline vs hand line

handline and hand line both are nouns.

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

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

handline (noun)	hand line (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.