2 syllables:
graeae, leia, say aah

3 syllables:
-aceae, aceae, andreae, aurea, ocreae, turreae

4 syllables:
astereae, baa taa, bryaceae, buddleia, buxaceae, clathraceae, clethraceae, fagaceae, fucaceae, ginkgoaceae, juncaceae, lauraceae, malvaceae, palmaceae, phallaceae, pimpleia, taxaceae, trilliaceae, ulmaceae

5 syllables:
acanthaceae, aizoaceae, alliaceae, ambrosiaceae, apiaceae, arecaceae, azollaceae, bacillaceae, begoniaceae, bombacaceae, canellaceae, caricaceae, chloranthaceae, colchicaceae, corylaceae, cryptophyceae, cyclanthaceae, cymbidieae, cyrilliaceae, dematiaceae, dennstaedtiaceae, dipsacaceae, ericaceae, flacourtiaceae, helvellaceae, iridaceae, lamiaceae, loranthaceae, magnoliaceae, menyanthaceae, mimosaceae, morchellaceae, myricaceae, najadaceae, nepenthaceae, nostocaceae, pezizaceae, phyllanthaceae, primulaceae, punicaceae, resedaceae, salicaceae, santalaceae, secotiaceae, symplocaceae, tiliaceae, tremellaceae, ulvophyceae, urticaceae, volvocaceae, xyridaceae

6 syllables:
agaricaceae, amygdalaceae, aphyllanthaceae, araliaceae, aspergillaceae, asphodelaceae, bartonellaceae, blastodiaceae, bromeliaceae, callitrichaceae, calycanthaceae, capparidaceae, chlamydiaceae, desmidiaceae, diatomaceae, dilleniaceae, erpodiaceae, fumariaceae, gleicheniaceae, goodeniaceae, haemodoraceae, hyacinthaceae, hydrophyllaceae, hypericaceae, lachnospiraceae, legionellaceae, leucobryaceae, lycoperdaceae, marchantiaceae, micrococcaceae, moniliaceae, myxococcaceae, orobanchaceae, parmeliaceae, pasteurellaceae, pedaliaceae, philadelphaceae, phytolaccaceae, psathyrellaceae, ranunculaceae, roridulaceae, salvadoraceae, simaroubaceae, sphaerobolaceae, streptococcaceae, tamaricaceae, tribonemaceae, tropaeolaceae, tulostomaceae, xanthorrhoeaceae, zygophyllaceae

7 syllables:
actinidiaceae, aeromonadaceae, avicenniaceae, caryophyllaceae, cephalotaxaceae, ceratophyllaceae, cercidiphyllaceae, chenopodiaceae, diapensiaceae, erythroxylaceae, hamamelidaceae, hymenophyllaceae, lactobacillaceae, laminariaceae, lardizabalaceae, lycopodiaceae, methylococcaceae, pontederiaceae, selaginellaceae, staphylococcaceae

8 syllables:
auriculariaceae, bacillariophyceae, chlamydomonadaceae, corynebacteriaceae, lactobacteriaceae, mycobacteriaceae, myxobacteriaceae, nitrobacteriaceae, septobasidiaceae, thiobacteriaceae

9 syllables:
bifidobacteriaceae, enterobacteriaceae

3 syllables:
happily, fractiously, gallantly, thankfully, tapestry, axletree, phantasy, cabinetry, capably, scammony, apogee, chastity, nastily, blasphemy, anthony, sanity, craftily, cavity, rapidly, banditry, tragedy, balcony, rampantly, gascony, balmily, gravelly, captaincy, galaxy, travesty, fallacy, gravity, patchouli, nascency, stagnancy, damnably, laxity, bashfully, halfpenny, apathy, satiny, faculty, calumny, valiantly, valency, ataxy, abbacy, absently, antony, lazily, baptistery, atrophy, amnesty, majesty, callously, mangabey, maggoty, scantily, practically, anxiously, anomie, angrily, flashily, cadency, gallantry, agony, rhapsody, falconry, sassaby, agilely, scrappily, tangency, bankruptcy, passably, saxony, patently, tammany, gadgetry, fantasy, valiancy, malady, family, pageantry, handily, tastily, basketry, cannily, manfully, tactfully, alchemy, plangency, randomly, canopy, affably, manatee, cavalry, vanity, rackety, strategy, rascally

4 syllables:
tonality, modality, casually, formality, vitality, unhappily, brutality, concavity, depravity, rationally, fugacity, casualty, actually, opacity, diastole, alacrity, sagacity, compatibly, mentality, catastrophe, audacity, mortality, anatomy, locality, nasality, substantially, naturally, vivacity, mammalogy, calamity, neutrality, edacity, frugality, legality, pugnacity, insanity, philately, totality, analogy, elaborately, disassembly, academy, type family, profanity, nationally, lethality, juglandaceae, rapacity, reality, anastrophe, capacity, normality, sodality, finality, carnality, philanthropy, morality, pulp cavity, examinee, salacity, voracity, financially

5 syllables:
sexuality, cordiality, perspicacity, triviality, understandably, actuality, factuality, unreality, criticality, abnormality, royal family, circumstantially, incapacity, joviality, alismatidae, pertinacity, subnormality, geniality, satisfactorily, gross anatomy, liberality, nationality, practicality, commonality, hylobatidae, nasal cavity, inhumanity, irrationally, hospitality, underhandedly, animality, sensuality, spiral galaxy, oral cavity, generality, musicality, unnaturally, partiality

6 syllables:
asexuality, center of gravity, total depravity, infant mortality, tympanic cavity, incorporeality, pathetic fallacy, congeniality, specific gravity, unilaterally, bilaterality, universality, irrationality, spirituality, substantiality, nuclear family, centre of gravity, ambystomatidae, bisexuality, municipality, thoracic cavity, channel capacity, extended family, milky way galaxy, internationally, dimensionality, artificiality

7 syllables:
segmentation cavity, superficiality, homosexuality, insubstantiality, immateriality, amniotic cavity, abdominal cavity, territoriality, confidentiality, virtual reality

8 syllables:
microscopic anatomy, military academy