The clue "Optical opening" last appeared in the Newsday.com crossword on May 20, 2016. The correct answer for this puzzle is "APERTURE", a 8-letter word.
Solution APERTURE is 8 letters long. So far we haven´t got a solution of the same word length.
There is 1 solutions. The longest is APERTURE with 8 letters, and the shortest is APERTURE with 8 letters.
No, "OPTICAL OPENING" hasn´t seen a spike right now. Solvers are most interested in: Express sorrow, Dormant, Lose one's cool, church officer and NYC gallery.
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The solution is 8 letters long.