Mêmes voyelles que claustrations
cognation,
collation,
conation,
corrasion,
cotation,
d'occasion,
donation,
dotation,
flottation,
foration,
formation,
location,
moraillon,
notations,
novation,
oblation,
occasion,
olfaction,
optation,
ovation,
phonations,
plopation,
porte-avion,
porte-fanion,
probation,
prolation,
pronation,
prostration,
protraction,
rogation,
rotation,
somation,
sommation,
vocation,
voration,
votation.