Or search: unifying, centripetal, integrative, centralizing
3 Syllables: SUU
realising, realizing
4 Syllables: SUUU
analyzing, civilizing, emphasizing, enterprising, equalizing, fertilizing, generalizing, mobilizing, moralizing, neutralizing, paralyzing, specializing, stabilizing, symbolizing, tantalizing, utilizing
5 Syllables: USUUU
demoralizing, exemplifying, identifying

Found 21 words across 3 groupings.