diphthongとは 意味・読み方・使い方

別の表記

• dipthong (obsolete)

語源

From French diphtongue, from Late Latin diphthongus, from Ancient Greek δίφθογγος (díphthongos, “two sounds”), from δίς (dís, “twice”) + φθόγγος (phthóngos, “sound”).

発音

• (英国発音) IPA: /ˈdɪfˌθɒŋ(ɡ)/, /ˈdɪpˌθɒŋ(ɡ)/
• (米国発音) IPA: /ˈdɪpˌθɔŋ/, /ˈdɪfˌθɔŋ/; (cot–caught merger) /ˈdɪpˌθɑŋ/, /ˈdɪfˌθɑŋ/

• 韻: -ɪfθɔŋ, -ɪpθɔŋ, -ɪfθɑŋ, -ɪpθɑŋ

• Notes: Pronunciations with /p/ are more common in American English than elsewhere.

名詞

diphthong (plural diphthongs)

1. (phonetics) A complex vowel sound that begins with the sound of one vowel and ends with the sound of another vowel, in the same syllable.

   Synonym: gliding vowel

   Coordinate terms: monophthong, triphthong, hiatus, synizesis

   • 2021 October 5, Gessica Puccini, “Lang Belta: the Belter language from SYFY/Amazon’s The Expanse”, in Lingoblog‎:

     In Lang Belta vowels usually appear preceding or following a consonant (see previous examples), and as of now no occurrence of diphthongs or triphthongs has been attested.

2. (phonetics) A diaphoneme realized as a two-target vowel in some but not necessarily all dialects.
3. (rare) A vowel digraph or ligature.
   • 1854, Robert Bigsby, Historical and Topographical Description of Repton, in the County of Derby‎, Woodfall and Kinder, page 47:

     And he might have written the name, also, with the diphthong æ, as well as the single vowel, in the initial syllable, throughout all the preceding forms.

   • 1860, Joseph E. Worcester, An Elementary Dictionary of the English Language‎, Swan, Brewer, and Tileston, page 12:

     An improper diphthong has only one of the vowels sounded; as, ea in heat, oa in coal.

   • 1874, Theophilus Dwight Hall, A Child’s First Latin Book‎, John Murray, page 3:

     The diphthong ae is sounded like ē (§7); that is, it has the sound of ey in they.

等位語

派生語

参考

参照

Further reading

• diphthong on Wikipedia.Wikipedia