THESAURUS
polysyllable
antonym, articulation, expression, free form, grandiloquence, hard word, homograph, homonym, homophone, jawbreaker, lexeme, lexiphanicism, linguistic form, locution, logos, long word, metonym, minimum free form, monosyllable, sesquipedalian, syllable, synonym, term, usage, utterance, verbalism, verbum, vocable, word
ROGET THESAURUS
polysyllable
Letter
N
letter, character, hieroglyphic, type, capitals, digraph, trigraph, ideogram, ideograph, majuscule, minuscule, majuscule, minuscule, alphabet, ABC, abecedary, christcross-row, consonant, vowel, diphthong, triphthong, mute, liquid, labial, dental, guttural, syllable, monosyllable, dissyllable,
polysyllable, affix, suffix, spelling, orthograph, phonography, phonetic spelling, anagrammatism, metagrammatism, cipher, monogram, anagram, doubleacrostic, literal, alphabetical, abecedarian, syllabic, majuscular, minuscular, uncial.