Ign is a trigraph used in a few French words to write the sound IPA|/ɲ/ such as "oignon" IPA|/ɔɲɔ̃/ "onion" and "encoignure" "corner". It was eliminated in the French spelling reform of 1990, but continues to be used.
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Trigraph (orthography) — A trigraph (from the Greek: τρεῖς, treîs, three and γράφω, gráphō, write ) is a group of three letters used to represent a single sound or a combination of sounds that does not correspond to the written letters combined. For example, in the word… … Wikipedia
