2 Syllablesgentian, mention, tension
Now you can make multisyllabic rhymes in the new rhymit app :)
3 Syllablesabstention, ascension, attention, contention, convention, declension, detention, dimension, dissension, extension, indention, intension, intention, invention, prehension, pretension, prevention, recension, retention, subvention, suspension, sustention
4 Syllablesapprehension, comprehension, condescension, contravention, hypertension, inattention, intervention, reprehension
5 Syllablesincomprehension, misapprehension, nonintervention