FID
FIDDIOUS
FIDDIOUSED
FIDDIOUSES
FIDDIOUSING
FIDDLE
FIDDLEBACK
FIDDLEBACKS
FIDDLED
FIDDLEDEDEE
FIDDLEDEEDEE
FIDDLEHEAD
FIDDLEHEADS
FIDDLENECK
FIDDLENECKS
FIDDLER
FIDDLERS
FIDDLES
FIDDLESTICK
FIDDLESTICKS
FIDDLEWOOD
FIDDLEWOODS
FIDDLEY
FIDDLEYS
FIDDLIER
FIDDLIEST
FIDDLING
FIDDLY
FIDEICOMMISSA
FIDEICOMMISSARY
FIDEICOMMISSUM
FIDEISM
FIDEISMS
FIDEIST
FIDEISTIC
FIDEISTS
FIDELISMO
FIDELISMOS
FIDELISTA
FIDELISTAS
FIDELITIES
FIDELITY
FIDGE
FIDGED
FIDGES
FIDGET
FIDGETED
FIDGETER
FIDGETERS
FIDGETIER
FIDGETIEST
FIDGETINESS
FIDGETINESSES
FIDGETING
FIDGETINGLY
FIDGETS
FIDGETY
FIDGING
FIDIBUS
FIDIBUSES
FIDO
FIDOS
FIDS
FIDUCIAL
FIDUCIALLY
FIDUCIARIES
FIDUCIARILY
FIDUCIARY

68 words start with FID.