What's the nine-letter word I'm looking for? It starts with O.
x x x x x x x x x x x x
x x x x x x x x x x x x
x x x x x x x x x x x x
x x x x x x x x x x x x
x x x x x x x x x x x x
x x x x x x x x x x x x
You are looking for the word
OPERATORS!
Explanation: Let's take the image of X's:
Identify any X's that are NOT corners (non-corny), that is, they are not under a corner of any shape:
And we have just drawn the
4 basic mathematical OPERATORS, + / x and -, the 9 letter term which must be the final answer!