2 syllables:
adder, adere, badar, badder, bader, bladder, brader, cadere, cador, chadar, chaddar, dadur, gadar, gaddar, gadder, gadere, gladder, hadar, hadder, had her, kadar, kadder, khaddar, ladar, madar, madder, madere, nadder, padder, radder, sadder, shadur, skadar

3 syllables:
accadere, air bladder, bayadere, blackadder, death adder, gall-bladder, gallbladder, milk adder, puff-adder, puff adder, rhayader, stepladder, swim bladder, white madder, wild madder

4 syllables:
banded adder, checkered adder, computador, dennis rader, flaccid bladder, ryan bader

5 syllables:
indian madder

6 syllables:
urinary bladder

2 syllables:
cracker, spatter, smacker, chatter, bagger, wrapper, satyr, packer, shatter, latter, swagger, slacker, flapper, jabber, whacker, clapper, backer, splatter, attar, dapper, scatter, tapir, crapper, nagger, jagger, batter, hacker, mater, tracker, tatter, tabour, stagger, knacker, natter, platter, blabber, flatter, clatter, tatar, patter, dagger, sapper, clabber, smatter, grabber, stabber, catarrh, hatter, rapper, scrapper, jaeger, mapper, snapper, matter, strapper, trapper, slabber, lacquer, ratter, bakker, faqir, pabir

3 syllables:
attacker, bespatter, white matter, front matter, red snapper, gray matter, back matter, grey matter, backscatter, cat cracker, dust wrapper, end matter, gray snapper, hog snapper, line backer, no matter, puff batter, the matter, thigh-slapper, vannatter, waste matter

4 syllables:
oyster cracker, state of matter, double dagger, soda cracker, subject matter, graham cracker, spanish dagger, cannon cracker, cloak-and-dagger, fecal matter, fritter batter, mangrove snapper, mongol tatar, mutton snapper, pancake batter, pitter-patter, spin the platter, spirit rapper, turko-tatar, whippersnapper, written matter

5 syllables:
crux of the matter, textual matter

6 syllables:
catalytic cracker, alligator snapper, pictorial matter

7 syllables:
conservation of matter

9 syllables:
law of conservation of matter