7 letter words
SURPLUS​9
6 letter words
SLURPS​8
USURPS​8
5 letter words (9 words)
SPURS​7
LUPUS​7
SLURP​7
SLURS​5
USURP​7
PURLS​7
LUSUS​5
PULUS​7
SULUS​5
4 letter words (15 words)
PLUS​6
SPUR​6
PUSS​6
PURL​6
SLUR​4
SULU​4
PULS​6
SUSU​4
ULUS​4
URUS​4
SUPS​6
PURS​6
LURS​4
PULU​6
URPS​6
3 letter words (11 words)
UPS​5
SUR​3
SUP​5
SUS​3
PUR​5
PUS​5
PUL​5
PLU​5
ULU​3
URP​5
LUR​3
2 letter words
US​2
UP​4
UR​2