1 syllable:
bill's, billes, bills, bills', brill's, brills, chills, cills, dills, dils, dmils, drills, fills, frills, gill's, gills, grilles, grills, grillz, hill's, hills, hills', ills, jills, kills, mill's, mills, mills', mils, milz, nils, phil's, pill's, pills, pilz, prills, quills, rill's, rills, schilz, shills, shrills, sills, spill's, spills, squills, stills, stils, swills, thills, thrills, tills, trills, twills, ville's, vills, wil's, will's, wills, zills

2 syllables:
advil's, anthills, backfills, bear grylls, black hills, bluebills, bluegills, boatbills, brazil's, brazils, broadbills, bushmills, calills, carville's, catskills, chyskillz, cranesbills, crossbills, deville's, distills, distils, downhills, duckbills, dunghills, foothills, freshkills, fulfills, fulfils, gristmills, handbills, hawkbill's, hawksbills, hornbills, instills, instils, landfills, macdill's, molehills, nashville's, no-frills, nofrills, play-n-skillz, pontils, refills, sandhills, sawmills, shoebills, spoonbills, storksbills, t-bills, tamils, thornbills, treadmills, twibills, uphills, wade-giles, waxbills, waybills, windmills, worldskills

3 syllables:
atompilz, basophils, berkshire hills, bidonvilles, bonnevilles, daffodils, emuil's, hannah mills, hoovervilles, intervilles, jacksonville's, lindsay mills, megaphylls, microphylls, minimills, morrisville's, neutrophils, overbills, overfills, overkills, patty mills, razorbills, rototilles, stephen stills, thermophils, watermills, whippoorwills, windowsills, zephyrhills

4 syllables:
acidophils, aldridge-brownhills, beverly hills, halloween kills, trailing windmills

5 syllables:
eosinophils

7 syllables:
the hound of the baskervilles

8 syllables:
longest recorded sniper kills