fast Fourier transformation (FFT)
fast-handed
fast-hardening
fast-hold
fast-man
fast-recovery diode
fast-talk
fast-woman
fasten
fastened
fastener
fastening
fasti
fastidious
fastidiously
fastidiousness
fastigiate
fastigium
fastish
fastness
fastuous
fat
fat-body
fat-brained
fat-chops
fat-guts
fat-head
fat-headed
fat-headedness
fat-lime