2 syllables:
besar, besor, besser, blesser, bless her, bresser, cesser, cessor, chesser, dresser, dresseur, esser, fesser, fresser, gresser, guesser, hesser, jesser, jessore, kesar, kresser, leser, lesser, lessor, loesser, messer, messr, nesser, pesar, plessor, presser, pressor, press her, schlesser, sesar, sesser, specer, stressor, tessar, tresor, tresser, vesser, yes sir

3 syllables:
abaisser, accessor, addresser, addressor, adresser, aggressor, agresser, agresseur, agressor, assesseur, assessor, beckmesser, bergstresser, caresser, caress her, co-lessor, compresser, compressor, confesar, confesser, confesseur, confessor, cross-dresser, depressor, digresser, egressor, expresser, express her, fluorescer, hairdresser, impresser, impressor, impress her, insessor, kolesar, kompressor, landmesser, lopressor, manesar, obsessor, oppressor, possessor, precessor, processor, prof., profesor, professor, professore, progresar, redresser, redressor, regressor, relessor, represser, repressor, sublessor, successeur, successor, suppresser, suppressor, thanesar, transgressor, undress her

4 syllables:
abastecer, aborrecer, acquiescer, air compressor, antecessor, apetecer, buttermesser, co-assessor, co-processor, coalescer, corepressor, decompressor, dispossessor, food processor, full professor, intercessor, predecessor, prepossessor, repossessor, second-guesser, spike suppressor, surge suppressor, tax assessor, vasopressor, vinedresser, window-dresser, window dresser, word processor

5 syllables:
central processor, data processor, english professor, moto-compressor, multi-processor, multiprocessor, underpossessor, uniprocessor, vasodepressor

6 syllables:
assistant professor, homo antecessor, immunosuppressor, multi-core processor, visiting professor

7 syllables:
associate professor

2 syllables:
lever, heather, nether, never, leather, thresher, pleasure, clever, fresher, treasure, devoir, ever, aether, weather, heifer, feather, blether, measure, wether, leisure, tether, pressure, zephyr, sever, whether, aesir, chevre, tevere, trevor

3 syllables:
together, high pressure, fair weather, square measure, ooze leather, air pressure, whoever, flight feather, bell heather, whenever, dissever, endeavor, sea feather, board measure, at leisure, cold weather, dry measure, whatever, white feather, displeasure, endeavour, refresher, forever, whichever, sound pressure, blood pressure, low pressure, wherever, tape measure, however, whomever, bad weather, beach heather, carrefour, crushed leather, false heather, foot lever, gayfeather, good weather, guenevere, high-pressure, hot weather, long measure, oil pressure, quill feather, raw weather, scots heather, shoe leather, wash leather, white heather, white leather, whit leather, yard measure

4 syllables:
come together, all together, whatsoever, put together, vapor pressure, altogether, cubic measure, liquid measure, russia leather, hang together, throw together, patent leather, pull together, band together, common measure, high blood pressure, contour feather, get together, acupressure, add together, bring together, bunch together, cantilever, clap together, close together, compound lever, crowd together, desperate measure, draw together, fudge together, golden heather, gold of pleasure, lash together, league together, live-forever, pack together, piece of leather, princess feather, purple heather, saddle feather, sew together, sickle feather, slap together, stay together, stick together

5 syllables:
osmotic pressure, linear measure, calling together, circular measure, cobble together, coming together, compartment pressure, defensive measure, huddle together, lady of pleasure, living together, primary feather, sexual pleasure, withersoever

6 syllables:
barometric pressure, arterial pressure, diastolic pressure, radiation pressure, atmospheric pressure, brewer's mountain heather, bringing close together, capacity measure, imitation leather, information measure, in the altogether

8 syllables:
instantaneous sound pressure

9 syllables:
acoustic radiation pressure