What's the difference between swordsman and swordsmen?

Swordsman

Definition:

• (n.) A soldier; a fighting man.
• (n.) One skilled of a use of the sword; a professor of the science of fencing; a fencer.

Example Sentences:

• (1) Resorting to a series of Ted the swordsman scenes which may merely be the lurid fantasies of the heroine, director Christine Jeffs never makes it clear whether Hughes was a rampaging philanderer whose sexual conquests and general obliviousness to Plath's mounting depression led to her demise, or a man driven into other women's arms by his wife's chronic melancholy - perhaps the most time-honoured excuse of the inveterate tomcat - or both.
• (2) James Debens emails: "Watching Spain v Chile reminded me of the Arab swordsman scene in Indiana Jones, with Chile as our bestubbled hero killing tiki-taka."
• (3) And he's a spy and a great swordsman, and you get the feeling that if you put him into solitary confinement he would come out very much as he went in.
• (4) And yet it is to a Japanese assassin, a stone-cold swordsman, that his two most recent collaborators compare him.

Swordsmen

Definition:

• (pl. ) of Swordsman

Example Sentences:

• (1) Sportsman-fencers (683 persons) of various qualification and types of fencing (sabre fencers, foil fencers, swordsmen) have been roentgenologically examined.