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<br><span class="red_cr"><!--Start_Part-->━</span> noun <br>a skilled worker who repairs, maintains or constructs machinery. See also MECHANICIAN, MACHINIST<br><div id="Blank_10"></div><img src="http://image.hanmail.net/hanmail/fireball/dic/2005/b_history.gif" width="27" height="18" align="absmiddle"> 16c: see MECHANICAL.

<br><span class="red_cr"><!--Start_Part-->━</span> noun <br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">1 </SPAN><!--/Exp_No--></b></b>an annoying or troublesome person, thing or circumstance.<br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">2 </SPAN><!--/Exp_No--></b></b><i>law </i>something obnoxious to the community or an individual, that is disallowed by law.<br><div id="Blank_10"></div><img src="http://image.hanmail.net/hanmail/fireball/dic/2005/b_history.gif" width="27" height="18" align="absmiddle"> 15c: French, from <i>nuire</i> to injure.

<br><span class="red_cr"><!--Start_Part-->━</span> noun <br>someone or something that obstructs, or hinders or prevents advance<br><div id="Blank_10"></div><img src="http://image.hanmail.net/hanmail/fireball/dic/2005/b_history.gif" width="27" height="18" align="absmiddle"> 14c: from Latin <i>obstaculum</i>, from <i>ob-</i> before + <i>stare</i> to stand.

<br><span class="red_cr"><!--Start_Part-->━</span> noun <br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">1 </SPAN><!--/Exp_No--></b></b>a measure taken to ensure a satisfactory outcome, or to avoid a risk or danger.<br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">2 </SPAN><!--/Exp_No--></b></b>caution exercised beforehand.<br><div id="Blank_10"></div><img src="http://image.hanmail.net/hanmail/fireball/dic/2005/b_history.gif" width="27" height="18" align="absmiddle"> 17c: from Latin <i>praecautio</i>, from <i>cavere</i> to beware.

<br><span class="red_cr"><!--Start_Part-->━</span> noun <br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">1 </SPAN><!--/Exp_No--></b></b>the act of pursuing or chasing.<br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">2 </SPAN><!--/Exp_No--></b></b>an occupation or hobby.<br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">3 </SPAN><!--/Exp_No--></b></b>in cycling: a race in which two riders start at opposite sides of the track and try to overtake each other.<br><div id="Blank_10"></div><img src="http://image.hanmail.net/hanmail/fireball/dic/2005/b_history.gif" width="27" height="18" align="absmiddle"> 15c in sense 1; 14c in obsolete sense ‘persecution’: from French <i>purseute</i>, from <i>poursuivre</i> to pursue.

<span class="red_cr"><!--Start_Part-->━</span> noun <br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">1 </SPAN><!--/Exp_No--></b></b>a person or group of people competing with another for the same objective or in the same field.<br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">2 </SPAN><!--/Exp_No--></b></b>someone or something that is comparable with or equals another in quality, ability, etc.<br><span class="red_cr"><!--Start_Part-->━</span> adj <br>standing as a rival; in competition for the same objective or in the same field<br><span class="red_cr"><!--Start_Part-->━</span> verb (<b>rivalled</b>, <b>rivalling</b>; <i>US </i><b>rivaled</b>, <b>rivaling</b>)<div id="Blank_10"></div><img src="http://image.hanmail.net/hanmail/fireball/dic/2005/b_history.gif" width="27" height="18" align="absmiddle"> 16c: from Latin <i>rivalis</i>, originally meaning ‘someone who uses the same stream as another’, from <i>rivus</i> a stream.

<span class="red_cr"><!--Start_Part-->━</span> noun <br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">1 </SPAN><!--/Exp_No--></b></b>a plan of action.<br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">2 </SPAN><!--/Exp_No--></b></b>a system or programme<br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">3 </SPAN><!--/Exp_No--></b></b>a careful arrangement of different components<br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">4 </SPAN><!--/Exp_No--></b></b>a secret plan intended to cause harm or damage.<div id="Blank_10"></div><img src="http://image.hanmail.net/hanmail/fireball/dic/2005/b_history.gif" width="27" height="18" align="absmiddle"> 16c: Greek.

<span class="red_cr"><!--Start_Part-->━</span> verb (<b>billowed</b>, <b>billowing</b>)<br><i>intrans </i><br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">1 </SPAN><!--/Exp_No--></b></b>said eg of smoke: to move in large waves or clouds.<br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">2 </SPAN><!--/Exp_No--></b></b>(<i>usually </i><b>billow out</b>) to swell or bulge, like a sail in the wind<br><span class="red_cr"><!--Start_Part-->━</span> noun <br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">1 </SPAN><!--/Exp_No--></b></b>a rolling upward-moving mass of smoke or mist, etc.<div id="Blank_10"></div><img src="http://image.hanmail.net/hanmail/fireball/dic/2005/b_history.gif" width="27" height="18" align="absmiddle"> 16c as <i>noun </i>2: from Norse <i>bylgja</i>.

<span class="red_cr"><!--Start_Part-->━</span> noun <br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">1 </SPAN><!--/Exp_No--></b></b>a favourable circumstance; benefit or usefulness.<br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">2 </SPAN><!--/Exp_No--></b></b>a circumstance that may help one to succeed, win, etc.<br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">3 </SPAN><!--/Exp_No--></b></b>superiority over another.<br><b><b class="r_tit_13"><!--Exp_No--><SPAN CLASS="Exp_No">4 </SPAN><!--/Exp_No--></b></b><i>tennis </i>the point scored after DEUCE¹.<br><div id="Blank_10"></div><img src="http://image.hanmail.net/hanmail/fireball/dic/2005/b_history.gif" width="27" height="18" align="absmiddle"> 14c: from French <i>avantage</i>, from <i>avant</i> before; see also ADVANCE.