2 syllables:
arbon, barban, barbin, barbon, carbin, carbon, carbyne, charbon, darbonne, farben, far been, garbin, harbin, karban, karbon, narbonne

4 syllables:
chlorocarbon, fluorocarbon, oxocarbon, triclocarban

5 syllables:
perfluorocarbon

6 syllables:
activated carbon, hydrofluorocarbon

8 syllables:
hydrochlorofluorocarbon, tetranitratoxycarbon

2 syllables:
pardon, burton, organ, tartan, hearken, tarpan, hearten, birken, garden, durban, gorgon, urban, morgen, morton, marten, zircon, darken, jargon, certain, martin, norton, gordon, carton, turban, bourbon, jordan, cordon, tarpon, bourdon, spartan, guerdon, morgan, harden, curtain, harken, birchen, bargain, shorten, sharpen, verdun, barton, warden, bergen, burden, airgun, carden, darden, gergen, horton, orpin, riordan, terpene

3 syllables:
unburden, house martin, drop curtain, tea garden, hand organ, herb garden, house organ, mouth organ, uncertain, sand martin, pipe organ, reed organ, rock garden, roof garden, disburden, sense organ, game warden, pine marten, stone marten, suburban, sex organ, end organ, bank martin, beech marten, bombardon, cell organ, churchwarden, dishearten, face-harden, foreshorten, for certain, free pardon, grind organ, hop garden, incertain, plant organ, rose garden, saint martin, speech organ, steam organ, street organ, tree martin, truck garden

4 syllables:
purple martin, market garden, reserpine, foreordain, iron curtain, safety curtain, bamboo curtain, beast of burden, barrel organ, white man's burden, chinook jargon, overburden, kitchen garden, chernomyrdin, closing curtain, daniel morgan, fire warden, flower garden, genus tarpon, hammond organ, henry morgan, indoor garden, in the bargain, j p morgan, lycoperdon, onopordon, shower curtain, sunken garden, travel bargain, vital organ

5 syllables:
john pierpont morgan, electric organ, battle of verdun, external organ, genital organ, internal organ, into the bargain, oregon jargon, ruptiliocarpon, theater curtain, theatre curtain, thomas hunt morgan, vegetable garden, victory garden

6 syllables:
zoological garden, botanical garden, american marten, american organ, capital of jordan, electronic organ, excretory organ, lateral line organ, olfactory organ, reproductive organ, urinary organ

7 syllables:
respiratory organ

8 syllables:
hashemite kingdom of jordan

10 syllables:
male internal reproductive organ

11 syllables:
female internal reproductive organ