Aphthong definitions

aphthong

silent letter
Found on http://phrontistery.info/a.html

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Aphthong

• (n.) A letter, or a combination of letters, employed in spelling a word, but in the pronunciation having no sound.
Found on http://thinkexist.com/dictionary/meaning/aphthong/

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Aphthong

Aph'thong noun [ Greek ... silent; 'a priv. + ... voice, sound, from ... to sound.] A letter, or a combination of letters, employed in spelling a word, but in the pronunciation having no sound. -- Aph*thon'gal adjective
Found on http://www.encyclo.co.uk/webster/A/102

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