Conceivably (7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">conceivably</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for perhaps that I've seen before include "It may be" , "Quite possibly" , "Not necessarily" , "Possibly but not certainly" , "Could be, maybe" .)
(Other definitions for maybe that I've seen before include "Perhaps, might happen" , "Perhaps, possibly" .)