2 syllables:
bender, bendir, blender, blendr, brender, brendor, dender, dendr, ender, ende der, endor, endre, end her, fender, gender, hender, kender, lender, mender, pender, pendere, prender, prendere, render, rendre, schlender, sclender, sender, send her, skender, slender, spender, spend her, splender, splendor, splendore, stender, tender, trender, vender, vendor, vendre, wender, wenn der, yender, zehnder, zender

3 syllables:
absender, agender, allender, amender, anwender, apprendre, aprender, ascender, atender, attender, attendre, b-bender, bartender, befriender, big spender, callender, cavender, challender, cisgender, commender, comprender, contender, cross-gender, dead-ender, defender, defendor, defend her, degender, depender, descender, descendre, dispender, distender, eastender, einbender, encender, engender, entender, esplendor, expender, extender, fasbender, fassbender, goaltender, hellbender, ingender, intender, intendere, mind-bender, misrender, misspender, muckender, newsvendor, ofender, offender, offendere, offend her, perpender, pretender, provender, rear-ender, retender, riprendere, sandbender, surrender, suspender, tail-ender, transcender, transgender, untender, weekender

4 syllables:
apprehender, aprehender, bitdefender, bittenbender, bitter-ender, condescender, discommender, double-ender, fender-bender, first offender, gender-bender, legal tender, nonattender, overspender, parascender, recommender, reoffender, reprehender, self-surrender, vandevender, vilipender

5 syllables:
michael fassbender, public defender, superintender

6 syllables:
grammatical gender, land rover defender, non-binary gender

2 syllables:
centaur, center, centre, ember, enter, kemper, member, mentor, renter, splendour, stentor, temper, tenter, venter

3 syllables:
brontosaur, 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, commissar, globular, onager, almoner, stomacher, gobbler, gossamer, commoner, nonpolar, pothunter, conifer, nothosaur, gossiper, slopseller, attemper, bad temper, board member, burn center, church member, clan member, club member, concenter, crew member, december, dismember, dissenter, distemper, extempore, ex tempore, good temper, gros ventre, ill temper, inventor, lamenter, nerve center, nerve centre, nonmember, november, off-center, one-member, presenter, pro tempore, quick temper, re-enter, remember, september, short temper, staff member, storm center, storm centre, the centaur

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, geographer, reconciler, odometer, siphonophore, hygrometer, chronometer, micrometer, hydrometer, charter member, city center, civic center, control center, council member, day care center, genus stentor, left-of-center, mid-december, mid-november, mid-september, placement center, research center, shopping center, student center, union member, urban center

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, canine distemper, committee member, conference center, equine distemper, faculty member, financial center, medical center, structural member

6 syllables:
interferometer, autobiographer, accelerometer, cinematographer, sphygmomanometer, evaporometer, telethermometer, auditory center, community center, entertainment center, municipal center

7 syllables:
clinical thermometer, resistance thermometer, radiomicrometer, respiratory center

8 syllables:
electrodynamometer

9 syllables:
radio interferometer