UnscrambleTheWord.codiphthong
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Is diphthong a Scrabble word?
Word Games
- Scrabble US/Canada (OTCWL) Yes
- Scrabble UK (SOWPODS) Yes
- Wordle No
- Words With Friends Yes
Scrabble US/Canada (OTCWL) 
Wordle 
Words With Friends What is the meaning of diphthong?
Definition
noun (English)
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.Synonyms: gliding vowel
2. (phonetics) A diaphoneme realized as a two-target vowel in some but not necessarily all dialects.
3. (rare) A vowel digraph or ligature.Examples: "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."; "An improper diphthong has only one of the vowels sounded; as, ea in heat, oa in coal."; "The diphthong ae is sounded like ē (§7); that is, it has the sound of ey in they."rare
Definition source: Wiktionary