fieldsman vs fielder

fieldsman and fielder both are nouns.

Word	Noun	Adjective	Verb	Adverb
fieldsman	Yes	No	No	No
fielder	Yes	No	No	No

As nouns, fieldsman and fielder are synonyms defined as:

fieldsman and fielder: a member of the cricket team that is fielding rather than batting

fieldsman (noun)	fielder (noun)
a member of the cricket team that is fielding rather than batting	a member of the baseball team that is in the field instead of at bat
	a member of the cricket team that is fielding rather than batting