COMBINING OVERLINE is one of the 112 characters in the Combining Diacritical Marks Unicode subset.
The image below shows how the COMBINING OVERLINE symbol looks like in some of the most complete UTF-8 fonts: Code2000, Sun-ExtA, WenQuanYi Zen Hei and GNU Unifont. If the font in which this web site is displayed does not contain the COMBINING OVERLINE symbol, you can use the image below to get an idea of what it should look like.
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