HTML/CSS/Table Attributes/abbr
"abbr" sets the abbreviated text for the cell and replace the cell contents
<HTML>
<BODY>
<table border="1">
<tr>
<td abbr="C1"> Cell 1 content </td>
</tr>
<tr>
<td abbr="C2"> Cell 2 content </td>
<td abbr="C3"> Cell 3 content </td>
</tr>
</table>
</BODY>
</HTML>