Or search: biology, darwinism, lamarckism
3 Syllables: SUU
dualism
4 Syllables: SUUU
Calvinism, communism, feudalism, heathenism, humanism, mechanism, organism, paganism, rheumatism, unionism
5 Syllables: USUUU
anachronism, antagonism, determinism, sectarianism
6 Syllables: UUUSUU
individualism
7 Syllables: UUUSUUU
utilitarianism

Found 17 words across 5 groupings.