2 syllables:
cobbler, doblar, grobler, knobbler, nobbler

3 syllables:
hobbler, squabbler, wobbler

2 syllables:
trochlear, toddler, poplar

3 syllables:
brontosaur, white poplar, sloganeer, hosteller, monitor, hollander, godmother, nodular, polymer, proposer, jocular, cockchafer, sodbuster, popular, cocklebur, modeler, hogchoker, goddaughter, commodore, colander, columnar, alcazar, oliver, blockbuster, pompadour, bolivar, gospeler, modeller, monomer, black poplar, commissar, globular, onager, almoner, stomacher, gossamer, commoner, nonpolar, pothunter, conifer, nothosaur, gossiper, slopseller, common murre, cottager, gospeller, groveller, holloware, ocular, promiser, promisor, quadrature, swashbuckler, troposphere, gray poplar, swamp poplar

4 syllables:
biographer, atmometer, picometer, spectrometer, cryometer, psychrometer, tachometer, spherometer, manometer, astronomer, algometer, hodometer, unpopular, decametre, bilocular, demographer, photographer, pornographer, binocular, clinometer, bolometer, philosopher, kilometer, astrologer, speedometer, subocular, thermometer, balsam poplar, geographer, reconciler, odometer, yellow poplar, siphonophore, hygrometer, chronometer, micrometer, hydrometer, assam rubber, black hollander, compositor, copolymer, cosmographer, dock-walloper, ethnographer, femtometer, geometer, heart monitor, hectometer, horologer, involucre, lithographer, pedometer, pisanosaur, pyrometer, sclerometer, tintometer, typographer, viscometer, aspen poplar, downy poplar, necklace poplar, tulip poplar

5 syllables:
interlocutor, lexicographer, gas thermometer, salinometer, densitometer, myriameter, choreographer, piezometer, variometer, ovipositor, dynamometer, anemometer, katharometer, mass spectrometer, audiometer, mileometer, vinyl polymer, goniometer, galvanometer, sensitometer, inclinometer, actinometer, declinometer, tacheometer, magnetometer, air thermometer, bibliographer, craniometer, electrometer, eudiometer, meat thermometer, oceanographer, press photographer, radiographer, radiometer, refractometer, simon bolivar

6 syllables:
interferometer, autobiographer, accelerometer, cinematographer, sphygmomanometer, evaporometer, telethermometer, african monitor, beckman thermometer, candy thermometer, cardiac monitor, cubic kilometer, historiographer, oven thermometer, platinum thermometer, potentiometer, silicone polymer, thermohydrometer, western balsam poplar

7 syllables:
clinical thermometer, resistance thermometer, radiomicrometer, centigrade thermometer, electric thermometer, fahrenheit thermometer, mercury thermometer, political commissar, reversing thermometer, vernier micrometer

8 syllables:
electrodynamometer

9 syllables:
radio interferometer, electronic fetal monitor

11 syllables:
maximum and minimum thermometer