Aphthong Definition
noun
(phonology) A letter or combination of letters employed in spelling a word but not pronounced.
The letters "gh" in "knight" are an aphthong.
Wiktionary
Other Word Forms of Aphthong
Noun
Singular:
aphthong
Plural:
aphthongsOrigin of Aphthong
-
From Ancient Greek. Compare diphthong.
From Wiktionary
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