Or search: gory, bloody, sanguine, optimistic, sanguinary, slaughterous
2 Syllables: SU
bilious, busiest, dimness, grimace, hideous, idiots, igneous, image, inches, India's, Indus, influx, ingots, interests, lineage, linkage, piteous, Plymouth, prettiest, princes, ringlets, serious, simplest, sinless, sinuous, spinach, trinkets, vitreous
2 Syllables: US
Linnaeus
3 Syllables: SUU
dizziness, giddiness, pitiless, weariness
3 Syllables: USU
amphibious, delirious, distinctness, fastidious, imperious, initiates, insidious, invidious, lascivious, Mauritius, mysterious, oblivious, Olympus, perfidious, punctilious
4 Syllables: UUSU
deleterious, Dionysius, ignominious, supercilious

Found 52 words across 5 groupings.