The Longest Words in English (US)

An extremely long, 26-syllable coined adjective describing the chemical composition of spa water. Its syllabification is dictated by its seven Latin-derived morphemes joined by linking vowels. The primary stress is on 'ol' /ɒl/ in 'vitriolic', with six secondary stresses on preceding components. The word is a lexical curiosity, divided as: ae-que-o-sa-li-no-cal-ca-li-no-ce-ra-ce-o-a-lu-mi-no-so-cu-pre-o-vi-tri-ol-ic.

The word 'pneumonoultramicroscopicsilicovolcanoconiosis' is a 19-syllable noun, broken down using standard US English syllabification rules based on vowel-consonant patterns. It's a complex word formed from multiple morphemes, primarily of Greek and Latin origin, relating to lung disease caused by dust inhalation. Primary stress falls on '-scop-' and '-oʊ-sis'.

Pneumonoultramicroscopicsilicovolcanoconiosis is a 45-letter medical term with 19 syllables (pneu-mo-no-ul-tra-mi-cro-scop-ic-sil-i-co-vol-ca-no-co-ni-o-sis). It combines Greek and Latin roots: pneumono- (lung), ultra- (beyond), micro- (small), -scopic (viewing), silico- (silica), volcano- (volcanic), and -coniosis (dust disease). Primary stress falls on the penultimate syllable 'o' following Greek medical terminology patterns, with secondary stresses distributed rhythmically throughout. The word denotes a lung disease from inhaling fine volcanic silica dust.

Compound medical noun with 19 syllables; orthographic division is pneu-mo-no-ul-tra-mi-cro-sco-pic-si-li-co-vol-ca-no-co-ni-o-sis, with primary stress on the o of -ni-o-sis and several secondary stresses on compound heads.

An artificially created 45-letter, 19-syllable compound noun. Syllabification follows its Greek and Latin morpheme boundaries (pneu-mo-no-ul-tra-...). The 'p' is silent. Primary stress falls on the 'o' of the final '-osis' morpheme, which indicates a disease. It refers to a lung condition caused by inhaling fine volcanic silica dust.

Pneumonoultramicroscopicsilicovolcanoconosis is a complex noun divided into 17 syllables based on onset-rime structure and vowel sounds. It's a constructed word with Greek and Latin roots, primarily stressed on 'scop-'. Its length and morphemic complexity make it an exceptional case in English syllabification.

The word is a multi-root compound with morpheme-aligned syllabification. Syllable breaks follow legal onset rules, with primary stress on the penultimate -no- of the final -nosis segment and secondary stresses on major combining forms.

Pneumonoultramicroscopicsilicovolcanoconiosis is an 18-syllable medical compound (pneu-mo-no-ul-tra-mi-cro-scop-ic-sil-i-co-vol-ca-no-co-no-sis) meaning a lung disease from inhaling fine volcanic silica dust. Built from Greek/Latin combining forms: pneumono- (lung) + ultramicroscopic + silico- (silica) + volcano- + -coniosis (dust disease). Primary stress on penultimate syllable with multiple secondary stresses. Syllabification follows Maximal Onset Principle while respecting morpheme boundaries and preserving the Greek 'pn' cluster.

The word 'hippopotomonstrosesquippedaliophobia' is broken down into eight syllables using the Onset-Rime rule. Primary stress falls on the penultimate syllable. The word is a noun denoting the fear of long words, and its morphemic structure reveals its Greek and Latin origins.

A 14-syllable compound noun; syllabified using English maximal-onset rules, geminate splits, and morpheme boundaries. Primary stress falls on "pho" with secondary stresses marking compound heads.

Hippopotomonstrosesquippedaliophobia is a 15-syllable humorous noun meaning 'fear of long words.' It combines Greek (hippo-, potamo-, -phobia) and Latin (monstro-, sesqui-, ped-, ali-) roots. Primary stress falls on 'pho' with secondary stresses on 'hip', 'pot', 'stros', 'squip', and 'da'. Syllabification follows standard English rules: double consonants split (hip-po, squip-pe), legal onset clusters stay together (str-, squ-), and single intervocalic consonants join the following syllable.

The word 'hippopotomonstrosesquippedaliophobia' is a 15-syllable, humorously coined term for 'fear of long words.' Its syllable division, 'hip-po-po-to-mon-stro-ses-quip-ped-a-li-o-pho-bi-a,' follows standard English rules like the Maximal Onset Principle and splitting of double consonants. The word is a compound of Greek and Latin morphemes alluding to 'hippopotamus,' 'monster,' 'long words,' and 'fear.' Primary stress is on 'pho' (/ˈfoʊ/), with secondary stresses on the main syllables of the component parts. Phonetically, it is transcribed as /ˌhɪp.ə.ˌpɒ.tə.ˌmɒn.strə.ˌsɛs.kwɪp.ˌpɛd.ə.li.ə.ˈfoʊ.bi.ə/.

Supercalifragilisticexpialidocious is a complex, nonce word divided into 14 syllables based on onset-rime structure and vowel sounds. It features a Latin-derived prefix and root, combined with playful suffixes. Primary stress falls on '-cali-'. Its unique construction and pronunciation present several linguistic exceptions.

Supercalifragilisticexpialidocious is a 14-syllable coined adjective (su-per-cal-i-fra-gil-is-tic-ex-pi-al-i-do-cious) with primary stress on -fra- and secondary stresses on su- and -do-. It follows standard English syllabification rules including Maximal Onset Principle and VCCV splitting. The word means 'extraordinarily wonderful' and was popularized by the 1964 film 'Mary Poppins.' IPA: /ˌsuː.pɚ.kæl.ɪ.ˌfræ.dʒɪl.ɪs.tɪk.ɛk.spi.æl.ɪ.ˌdoʊ.ʃəs/.

A 14-syllable adjective meaning 'wonderful', 'supercalifragilisticexpialidocious' is a compound neologism derived from Latin and Greek roots. Its syllable division follows standard English rules like the Maximal Onset Principle, with primary stress on the 'do' syllable. It is spelled s-u-p-e-r-c-a-l-i-f-r-a-g-i-l-i-s-t-i-c-e-x-p-i-a-l-i-d-o-c-i-o-u-s.

Supercalifragilisticexpialidocious is a playful adjective with 14 syllables (su-per-cal-i-fra-gil-is-tic-ex-pi-al-i-do-cious), primary stress on do and secondary stresses on su, cal, fra, is, ex, al. It blends super- with cali/fragil-istic/expiali/doci plus -ous, and is pronounced /ˌsuːpɚˌkælɪˌfrædʒəlˌɪstɪkˌɛkspiˌælɪˈdoʊʃəs/ in US English.

Dichlorodiphenyltrichloroethane is a complex noun with ten syllables divided based on vowel-consonant patterns and morphemic boundaries. Primary stress falls on 'phenyl'. It's a chemical compound formerly used as an insecticide, now largely banned due to environmental concerns.