Attribute of
<td>
What does <td nowrap> do?
NOWRAP indicates that text should not wrap in the cell.

Attribute for <TD ...>
NOWRAP

NOWRAP indicates that text should not wrap in the cell. NOWRAP serves much the same purpose as the <NOBR> tag. For example, the following cell will not wrap not matter how long the text.

this code produces this
 <TABLE BORDER=1 CELLPADDING=3> <TR>  <TD NOWRAP>This is a really long sentence, but I would prefer it not wrap at all any time.</TD>  </TR> </TABLE> 
This is a really long sentence, but I would prefer it not wrap at all any time.

Lines can still be broken explicitly with <BR ...>, <P ...>, and other block level tags.

this code produces this
 <TABLE BORDER=1 CELLPADDING=3>  <TR> <TD>Favorite closing lines:</TD> <TD NOWRAP>Do not go gentle into that good night<BR> Rage, rage against the dying of the light.<P> <I>Dylan Thomas</I> </TD>  </TR> </TABLE> 
Favorite closing lines: Do not go gentle into that good night
Rage, rage against the dying of the light. Dylan Thomas
Parent: 
<TD …>