2 syllables:
cockler, fockler, locklair, locklar, locklear, mockler

2 syllables:
cobbler, gobbler, poplar, toddler

3 syllables:
editor, decolor, semaphore, sepulcher, nebular, hellebore, delaware, belshazzar, predator, headhunter, ecuador, creditor, metaphor, guenevere, specular, senator, messenger, settler, metamere, secretaire, escolar, leveller, debugger, elater, prelature, seminar, stepmother, sepulture, reckoner, megathere, reservoir, cellular, tetraspore, questioner, wrestler, seconder, sepulchre, pedaler, regular, medicare, megaspore, premolar, belabour, presenter, temperature, pensioner, reveler, stepbrother, stegosaur, secular, black poplar, gray poplar, swamp poplar, white poplar

4 syllables:
emmentaler, centromere, confectioner, noncellular, executor, dosemeter, irregular, expenditure, developer, molecular, acellular, misdemeanour, investiture, corregidor, text editor, room temperature, embezzler, competitor, ctenophore, aspen poplar, balsam poplar, downy poplar, necklace poplar, tulip poplar, yellow poplar

5 syllables:
body temperature, intracellular, primogenitor, extracellular, curie temperature, city editor, copy editor, linkage editor

6 syllables:
managing editor, differentiator, absolute temperature, western balsam poplar

7 syllables:
capital expenditure