Conceptualize
I believe the answer is:
ideate
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">conceptualize</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ideate that I've seen before include "Form in the imagination" , "Form a picture of" , "Fancy" , "Imagine (psychology), aid tee (anag.)" .)