7 letter words
FITNESS​10
INFESTS​10
FINESTS​10
6 letter words (9 words)
FINEST​9
STEINS​6
INSETS​6
INFEST​9
FEINTS​9
FEISTS​9
FIENTS​9
SIENTS​6
SNIFTS​9
5 letter words (34 words)
SITES​5
STEIN​5
FINES​8
INSET​5
NESTS​5
FISTS​8
FEIST​8
SENSI​5
TINES​5
NITES​5
FESTS​8
SENTS​5
FEINT​8
SINES​5
TEINS​5
SENTI​5
NISSE​5
SIFTS​8
STIES​5
SIENT​5
4 letter words (46 words)
SITE​4
FINE​7
SENT​4
SETS​4
FITS​7
TIES​4
FIST​7
NEST​4
NETS​4
SITS​4
SINS​4
FEST​7
TENS​4
NESS​4
NITE​4
FINS​7
SINE​4
TINS​4
ESTS​4
SENS​4
3 letter words (32 words)
ITS​3
SET​3
NET​3
EST​3
TEN​3
FIT​6
SIT​3
SIN​3
TIE​3
INS​3
TIN​3
FIN​6
SEN​3
SIS​3
TIS​3
NIS​3
IFS​6
NIE​3
TES​3
ESS​3
2 letter words (14 words)
IN​2
IS​2
IT​2
IF​5
ET​2
ST​2
EN​2
NE​2
ES​2
SI​2
TE​2
FE​5
EF​5
TI​2