7 letter words
BISCUIT​11
6 letter words (4 words)
CUBITS​10
CUBIST​10
BUSTIC​10
CUBITI​10
5 letter words (6 words)
CUBIT​9
CUTIS​7
BUIST​7
CUITS​7
ICTUS​7
BUSTI​7
4 letter words (18 words)
BITS​6
SUIT​4
CUTS​6
BUST​6
CUBS​8
STUB​6
IBIS​6
TUBS​6
TICS​6
BIST​6
BUTS​6
CITS​6
CIST​6
UTIS​4
ISIT​4
CUIT​6
TUIS​4
SCUT​6
3 letter words (19 words)
BUT​5
ITS​3
BIT​5
CUT​5
SUB​5
BUS​5
SIT​3
TUB​5
SIC​5
CIS​5
TIS​3
BIS​5
CUB​7
CIT​5
TIC​5
SUI​3
SIB​5
UTS​3
TUI​3
2 letter words (8 words)
IS​2
IT​2
US​2
ST​2
UT​2
SI​2
BI​4
TI​2