I found an interesting kanji: 語, go.
It means words/language/spoken etc
語 =口+(音)+口+五
Evidently 語; 言口五,
Is 言; 口音?
In any case;
go = mouth + voice + mouth + go. (or say “go” = language/words like “go” = 5)
It means voice produced by humans hence language or words etc but its said like Japanese 5 which is again go. So the same kanji tells you what it means and how its said by using another widely used kanji such as go = 5 [ 五 ] ..
This is merely a coincidence that go = language and go = 5, and is denoted like 語.

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