aff ₉ aft ₆ alf ₆ arf ₆ auf ₆ bff ₁₁ caf ₈ def ₇ dif ₇ dof ₇ eff ₉ efs ₆ eft ₆ elf ₆ emf ₈ erf ₆ faa ₆ fab ₈ fad ₇ fae ₆ fag ₇ fah ₉ fan ₆ fap ₈ far ₆ fas ₆ fat ₆ faw ₉ fax ₁₃ fay ₉ fed ₇ fee ₆ feg ₇ feh ₉ fem ₈ fen ₆ fer ₆ fes ₆ fet ₆ feu ₆ few ₉ fey ₉ fez ₁₅ fib ₈ fid ₇ fie ₆ fig ₇ fil ₆ fin ₆ fir ₆ fit ₆ fix ₁₃ fiz ₁₅ flo ₆ flu ₆ fly ₉ fob ₈ foe ₆ fog ₇ foh ₉ fon ₆ foo ₆ fop ₈ for ₆ fou ₆ fox ₁₃ foy ₉ fra ₆ fro ₆ fry ₉ fub ₈ fud ₇ fug ₇ fum ₈ fun ₆ fur ₆ gif ₇ iff ₉ ifs ₆ kaf ₁₀ kef ₁₀ kif ₁₀ nef ₆ oaf ₆ off ₉ oft ₆ oof ₆ orf ₆ ref ₆ rif ₆ sif ₆ tef ₆ tfw ₉ ufo ₆ wof ₉