Or search: rival, score, tally, equate, modify, equalise, homogenize, homologise, homologize, homogenise
3 Syllables: SUU
realising, realizing
3 Syllables: UUS
theorizing
4 Syllables: SUUU
analyzing, civilizing, fertilizing, generalizing, mobilizing, moralizing, neutralizing, paralyzing, specializing, stabilizing, symbolizing, tantalizing, utilizing
5 Syllables: USUUU
demoralizing

Found 17 words across 4 groupings.