words ending in ion8

2 Syllables

gentian, mention, tension

3 Syllables

abstention, ascension, attention, contention, convention, declension, detention, dimension, dissension, extension, indention, intension, intention, invention, prehension, pretension, prevention, recension, retention, subvention, suspension, sustention

4 Syllables

apprehension, comprehension, condescension, contravention, hypertension, inattention, intervention, reprehension

5 Syllables

incomprehension, misapprehension, nonintervention