Mêmes voyelles que rotation
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, 
somation, 
sommation, 
vocation, 
voration, 
votation.