Ar·kan·sas stone 
(ärkən-sô′)
(ärkən-sô′)n.
A stone used for sharpening and grinding metals, especially the metal blades of knives.
- folk singing
- folk song
- folksong
- folksonomy
- folksy
- folktale
- folk tale
- folkway
- folky
- folky
- follicle
- follicle mite
- follicle-stimulating hormone
- follicular
- follicular cell
- folliculate
- folliculated
- folliculitis
- follow
- follow along
- follower
- followership
- follow in footsteps
- following
- follow in (someone's) footsteps