<span class="searchmatch">underbarring</span> present participle and gerund of underbar...
<span class="searchmatch">underbarred</span> simple past and past participle of underbar...
simple present underbars, present participle <span class="searchmatch">underbarring</span>, simple past and past participle <span class="searchmatch">underbarred</span>) (transitive) To place a bar under (a symbol)...