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Use "squareness" in a sentence
"It is out of fear of what is known as squareness that we rarely say what we really think or feel."
"You'll know the simple examples - such as taking four straight lines of the same length, that when arranged so they join up with each other, create a new thing that you couldn't have got from the lines alone, namely 'squareness'."
"TOS looked at its "squareness" in the episode with the hippies, I think."