roper vs steerer

roper and steerer both are nouns.

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

As nouns, steerer is a hypernym of roper; that is, steerer is a word with a broader meaning than roper:

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

Other hypernyms of roper include decoy.

roper (noun)	steerer (noun)
a craftsman who makes ropes	a beguiler who leads someone into danger (usually as part of a plot)
a cowboy who uses a lasso to rope cattle or horses	the person who steers a ship
a decoy who lures customers into a gambling establishment (especially one with a fixed game)