2 syllables:
brebis, cebus, d-bus, d bus, feebis, glebous, jebus, pci bus, phebus, phoebus, prepubis, p bus, rebis, rebus, scsi bus, seabus, spi bus, t bus, zebus

3 syllables:
amoebous, centrebus, paribas, philebus

4 syllables:
arctocebus, cercocebus, chlorocebus, leontocebus, microcebus, nycticebus, vmebus

5 syllables:
erythrocebus

2 syllables:
fetus, foetus, negus, thetis, treatise

3 syllables:
emphasis, nebulous, elements, hephaestus, tetanus, sedulous, petulance, offenseless, fecklessness, membranous, restlessness, excellence, exodus, evidence, pendulous, recklessness, edifice, detritus, blessedness, helplessness, renascence, precedence, helpfulness, pestilence, tremulous, prevalence, eminence, tenebrous, fretfulness, aesculus, pegasus, endlessness, resinous, credulous, resonance, dreadfulness, elephants, eloquence, pleasantness, regulus, daedalus, gentleness, healthfulness, precipice, petalous, specialness, negligence, tendinous, tenuous, emulous, femaleness, genesis, xenopus, venomous, benelux, elegance, relevance, boletus, cacicus, circaetus, cricetus, gypaetus

4 syllables:
contentiousness, benevolence, inelegance, antecedence, preeminence, beneficence, unpleasantness, affectedness, apetalous, directionless, edematous, shigellosis, state's evidence, maleficence, pink elephants, persepolis, incredulous, irrelevance, intelligence, malevolence, eleven-plus, necessitous, eptatretus, iapetus, king oedipus, naemorhedus, parochetus

5 syllables:
macrocephalous, leptocephalus, atelectasis, conscientiousness, hearsay evidence, hydrocephalus, direct evidence, microcephalous, overemphasis, gastroboletus, haliaeetus, mesocricetus

6 syllables:
magnetic resonance, indirect evidence, dicotyledonous

7 syllables:
circumstantial evidence

8 syllables:
artificial intelligence