Sealed (8)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sealed</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 airtight that I've seen before include "Without weak points" , "not letting out a breath?" , "Not allowing gas to pass" , "Hermetically sealed" , "Sure" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sealed</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for unopened that I've seen before include "Still closed" , "Remaining sealed" , "Having held onto seal" , "barred" , "shut" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sealed</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for shut that I've seen before include "Close" , "Closed" , "Push to" , "not accepting visitors" , "Slam" .)