Gesture, action (6)
I believe the answer is:
motion
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">gesture</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that gesture can be written as motion)</span><br/ ><br/ >'<span class="explanation-format__original">action</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that motion is a type of change)</span><br/ ><br/ ></span>
(Other definitions for motion that I've seen before include "Proposal for discussion or a vote" , "Old coin of Germany" , "See 14" , "Gesture; formal proposal" , "Formal proposal for debate" .)