{| class="wikitable" align="right"
!style="background: #ccf; font-size: 250%"|{{unicode|A̱a̱Ḇḇ}}
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"Combining macron below" '''{{unicode| ̱}}''' (U+0331) {{unicode| ̱}} is a Unicode Combining_diacritical_mark used in various orthographies, see the Precomposed_characters
:ḇ, ḏ, ẖ, ḵ, ḻ, ṉ, ṟ.
Not to be confused are "combining minus below" (U+0320) ̠, "combining low line" _̲̲ (U+0332) and "low line" ("underscore") _). The difference between "macron below" and "low line" is that the latter will result in an unbroken Underline when run together, compare {{unicode|a̱ḇc̱}} vs. {{unicode|a̲b̲c̲}}.
Note that the Unicode names of composed characters the decomposition of which contains this character misleadingly has "line below" (not "macron below"), thus, ḇ "latin small letter b with line below" decomposes to "latin small letter b" and "combining macron below".
==See also==
*Underline
Category:Unicode
Category:Diacritics