7 letter words
SUFFICE​15
5 letter words (7 words)
CUFFS​13
FICUS​10
SCUFF​13
FICES​10
FIEFS​11
FIFES​11
CUIFS​10
4 letter words (17 words)
FUSE​7
CUFF​12
CUES​6
FIFE​10
ICES​6
FEIS​7
FICE​9
SEIF​7
FISC​9
SICE​6
FIEF​10
ECUS​6
CUIF​9
EFFS​10
FEUS​7
FUCI​9
FUSC​9
3 letter words (18 words)
USE​3
ICE​5
SEC​5
SUE​3
SIC​5
CIS​5
CUE​5
EFF​9
IFS​6
SUI​3
IFF​9
ECU​5
SEI​3
FES​6
EFS​6
FIE​6
FEU​6
SIF​6
2 letter words (7 words)
IS​2
US​2
IF​5
ES​2
SI​2
FE​5
EF​5