roper vs ropemaker

roper and ropemaker both are nouns.

Word	Noun	Adjective	Verb	Adverb
roper	Yes	No	No	No
ropemaker	Yes	No	No	No

As nouns, roper and ropemaker are synonyms defined as:

Other synonyms of roper include rope-maker.

roper (noun)	ropemaker (noun)
a craftsman who makes ropes	a craftsman who makes ropes
a cowboy who uses a lasso to rope cattle or horses
a decoy who lures customers into a gambling establishment (especially one with a fixed game)