Words with the three letters cup?
grep cup /usr/share/dict/words
acupress
acupressure
acupunctuate
acupunctuation
acupuncturation
acupuncturator
acupuncture
alecup
anteoccupation
archcupbearer
Ascupart
aucupate
bluecup
bridecup
buttercup
concupiscence
concupiscent
concupiscible
concupiscibleness
concupy
creamcup
cup
cupay
cupbearer
cupboard
cupcake
cupel
cupeler
cupellation
cupflower
cupful
cuphead
cupholder
cupidinous
cupidity
cupidon
cupidone
cupless
cupmaker
cupmaking
cupman
cupmate
cupola
cupolaman
cupolar
cupolated
cupped
cupper
cupping
cuppy
cuprammonia
cuprammonium
cupreine
cuprene
cupreous
cupressineous
cupric
cupride
cupriferous
cuprite
cuproammonium
cuprobismutite
cuprocyanide
cuprodescloizite
cuproid
cuproiodargyrite
cupromanganese
cupronickel
cuproplumbite
cuproscheelite
cuprose
cuprosilicon
cuprotungstite
cuprous
cuprum
cupseed
cupstone
cupula
cupulate
cupule
cupuliferous
cupuliform
decuple
decuplet
dewcup
dicecup
dihydrocupreine
dihydrocuprin
disoccupation
disoccupy
dodecuplet
duodecuple
eggcup
eggcupful
encup
ethylhydrocupreine
eyecup
fevercup
giltcup
goldcup
hiccup
hydrocupreine
inoccupation
kingcup
leafcup
misoccupy
nonoccupant
nonoccupation
nonoccupational
nonrecuperation
nuncupate
nuncupation
nuncupative
nuncupatively
occupable
occupance
occupancy
occupant
occupation
occupational
occupationalist
occupationally
occupationless
occupative
occupiable
occupier
occupy
oilcup
overcup
overpreoccupation
overpreoccupy
porcupine
porcupinish
preoccupancy
preoccupant
preoccupate
preoccupation
preoccupative
preoccupied
preoccupiedly
preoccupiedness
preoccupier
preoccupy
queencup
recuperability
recuperance
recuperate
recuperation
recuperative
recuperativeness
recuperator
recuperatory
reoccupation
reoccupy
scup
scupful
scuppaug
scupper
scuppernong
scuppet
scuppler
semicup
semicupium
semicupola
sescuple
subdecuple
sucupira
suncup
teacup
teacupful
toothcup
uncupped
undercup
underoccupied
unoccupancy
unoccupation
unoccupied
unoccupiedly
unoccupiedness
unpreoccupied
unrecuperated
vesicupapular
watercup
whitecup
yellowcup
