2 syllables:
geyser, isere, kaiser, miser, riser, sizer, visor, wiser

3 syllables:
advisor, deviser, devisor, divisor, franchiser, franchisor, incisor, reviser, sun visor, surpriser

4 syllables:
advertiser, alkalizer, analyser, analyzer, appetiser, appetizer, atomiser, atomizer, breathalyser, breathalyzer, colonizer, compromiser, dialyzer, digitizer, energizer, enterpriser, equaliser, equalizer, exerciser, exorciser, fertilizer, galvanizer, harmonizer, hypnotizer, improviser, liquidizer, memorizer, merchandiser, moisturizer, nebulizer, neutralizer, normalizer, organizer, oxidizer, plasticizer, polarizer, publicizer, pulverizer, realizer, scrutinizer, sensitizer, sermonizer, specializer, stabilizer, steriliser, sterilizer, supervisor, sympathizer, synchronizer, synthesizer, tantalizer, temporizer, tenderizer, tranquilizer, vaporizer, visualizer, womaniser, womanizer

5 syllables:
common divisor, deodorizer, depolarizer, economiser, economizer, immobilizer, monopolizer, philosophizer, theologizer

6 syllables:
gyrostabilizer, hemodialyzer, investment advisor, pulse height analyzer

7 syllables:
greatest common divisor, organic fertilizer, vertical stabilizer

8 syllables:
differential analyzer, horizontal stabilizer

2 syllables:
neither, slicer, cicer, heifer, either, diver, lifer, deicer, nicer, eyesore, cypher, driver, cipher, splicer, fiver, blither, pfeiffer, schweitzer, striver, vithar

3 syllables:
pile driver, slave driver, decipher, survivor, pearl diver, arriver, bus driver, chlamyphore, contriver, encipher, mule driver, stake driver, tank driver, truck driver

4 syllables:
engine driver, scuba diver, device driver, backseat driver

5 syllables:
shipwreck survivor

6 syllables:
designated driver, underwater diver