triphthong
Triphthong (noun) means a single vowel sound within one syllable that glides smoothly through three different vowel qualities. Example: “The word 'fire' contains a triphthong for many speakers of English.”
How to use triphthong
Learner’s notesIn plain EnglishIt is a vowel sound that shifts through three vowel qualities within one syllable.
This is a specialist term used in phonetics and linguistics.
Note the correct pronunciation starts with an f sound, not a p sound, despite the spelling.
Trace the full origin ↓Fill the gap
Can you complete this real example?
The word 'fire' contains a _____ for many speakers of English.
Etymology
The word comes from the Ancient Greek term for having three voices, itself built from the words for three and sound.