Supersede (8)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">supersede</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for override that I've seen before include "Cancel by higher authority" , "Use one's authority to reject or cancel a decision" , "Counteract the normal operation" , "Disregard" , "Set aside by superior authority" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">supersede</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that supersede can be written as replace)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for replace that I've seen before include "Substitute, supplant" , "succeed" , "Put back in original position" , "Substitute, supersede" , "Provide a substitute for" .)