Mêmes voyelles que cupule
brulure,
brûlure,
bubu,
bulbul,
chubu,
cucu,
cucul,
cuculle,
cucuphes,
culbute,
culture,
cumul,
cursus,
curule,
frustule,
fucus,
fumure,
fute-fute,
futur,
grumelure,
gudule,
gugus,
gugusse,
guru,
hummus,
humus,
jujube,
juku,
kuru,
lucumes,
lugubre,
lulu,
lunule,
lupus,
luxure,
luzule,
mucus,
mumuse,
murmure,
muscu,
nunuche,
plumule,
pustule,
rupture,
russule,
scrupule,
sculpture,
structure,
succube,
sulfure,
surplus,
susucre,
suture,
trucmuche,
tubule,
tumulte,
turku,
turlut,
turlute,
turlutte,
tutu,
tututte,
ulluque,
ursule,
urus,
usure,
uvule.