steerer vs roper

steerer and roper both are nouns.

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

As nouns, roper is a hyponym of steerer; that is, roper is a word with a more specific, narrower meaning than steerer:

steerer: a beguiler who leads someone into danger (usually as part of a plot)
roper: a decoy who lures customers into a gambling establishment (especially one with a fixed game)

Other hyponyms of steerer include shill.

steerer (noun)	roper (noun)
a beguiler who leads someone into danger (usually as part of a plot)	a craftsman who makes ropes
the person who steers a ship	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)