The crossword solution for the term 'Granny or Square' is 'KNOT'. A KNOT is a fastening made by interweaving rope, string, or other flexible material. Knots have been used since ancient times for a variety of purposes, including fishing, sailing, and climbing. The two most common types of knots are granny knots and square knots. Granny knots are formed by tying two loops in the same direction, while square knots are formed by tying two loops in opposite directions.