It's a shade messy, but in place of the colon, use Unicode 05C3.
"Index entry w/colon in text (C:N ratio)" <Index entry w/colon in text (C:N
ratio)@discussions.microsoft.com> wrote in message
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"Escape" the colon by inserting a backslash before it: "C\:N ratio:for
graywater"
--
Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
Fairhope, Alabama USA
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"Index entry w/colon in text (C:N ratio)" <Index entry w/colon in text (C:N
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