figurer vs reckoner

figurer and reckoner both are nouns.

Word	Noun	Adjective	Verb	Adverb
figurer	Yes	No	No	No
reckoner	Yes	No	No	No

As nouns, figurer and reckoner are synonyms defined as:

figurer and reckoner: an expert at calculation (or at operating calculating machines)

Other synonyms of figurer include calculator, computer, estimator.

figurer (noun)	reckoner (noun)
an expert at calculation (or at operating calculating machines)	a handbook of tables used to facilitate computation
	an expert at calculation (or at operating calculating machines)