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Pronunciation varies by accent · noun
(phonology, archaic) A letter or combination of letters employed in spelling a word but not pronounced; a silent letter or polygraph.
The letters "gh" in "knight" are an aphthong.
Use aphthong when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Aphthong means (phonology, archaic) A letter or combination of letters employed in spelling a word but not pronounced; a silent letter or polygraph.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
The letters "gh" in "knight" are an aphthong.
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