2 syllables:
acker, aker, akkar, akker, akre, backer, back her, bakar, bakker, blacker, bracher, bracker, braquer, clacker, claquer, cracker, craquer, dacker, dakkar, drakkar, flacker, hacker, jacker, knacker, kracker, lacher, lacker, lacquer, laquer, macher, makar, nachor, nacker, packer, phacker, phracker, quacker, racker, sacar, sacchar, sacchar-, sachar, sacher, sacker, schacher, slacker, smacker, snacker, spacker, stacker, tacker, thacher, thacker, thakkar, tracker, trackir, vacher, wacker, whacker, yacker, yakare, yakker, zacher

3 syllables:
arnaquer, attacker, attaquer, backpacker, bullwhacker, bushwhacker, carjacker, cat cracker, corn-cracker, greenbacker, highjacker, hijacker, kobacker, linebacker, line backer, mantracker, meatpacker, nutcracker, outbacker, protracker, racetracker, ransacker, safe-cracker, safecracker, schabacker, shellcracker, skyjacker, souljacker, unpacker, vanacker, weed-whacker, weizsaecker, wisecracker, wit-cracker, woodcracker, ytcracker

4 syllables:
biohacker, cannon cracker, clark's nutcracker, firecracker, graham cracker, hydrocracker, illywhacker, milkytracker, neha kakkar, opentracker, oyster cracker, pokertracker, rickenbacker, soda cracker, the nutcracker

5 syllables:
common nutcracker

6 syllables:
catalytic cracker

2 syllables:
spatter, chatter, bagger, wrapper, satyr, shatter, latter, swagger, flapper, jabber, clapper, splatter, attar, dapper, scatter, tapir, crapper, nagger, jagger, batter, mater, tatter, tabour, stagger, madder, natter, platter, blabber, flatter, clatter, tatar, patter, dagger, sapper, adder, bladder, clabber, smatter, grabber, stabber, catarrh, hatter, rapper, ladder, scrapper, jaeger, mapper, snapper, matter, strapper, trapper, slabber, ratter, bader, faqir, pabir

3 syllables:
bespatter, white matter, puff adder, fish ladder, front matter, rope ladder, swim bladder, red snapper, gray matter, air bladder, back matter, grey matter, death adder, backscatter, dust wrapper, end matter, gray snapper, hog snapper, jack ladder, milk adder, no matter, puff batter, sea ladder, step ladder, the matter, thigh-slapper, vannatter, waste matter, white madder, wild madder

4 syllables:
state of matter, double dagger, scaling ladder, subject matter, jacob's ladder, spanish dagger, banded adder, checkered adder, cloak-and-dagger, fecal matter, flaccid bladder, fritter batter, mangrove snapper, mongol tatar, monkey ladder, mutton snapper, pancake batter, pilot ladder, pitter-patter, spin the platter, spirit rapper, turko-tatar, whippersnapper, written matter

5 syllables:
extension ladder, aerial ladder, crux of the matter, indian madder, textual matter

6 syllables:
urinary bladder, alligator snapper, northern jacob's ladder, pictorial matter

7 syllables:
accommodation ladder, conservation of matter

9 syllables:
law of conservation of matter