It's its own square' is a phrase used to describe something that is unique and stands out from the rest. The term is often used in reference to people or things that are unconventional or unusual in some way. The crossword solution for this term is 'ODD, ' which is a three-letter word meaning 'not regular or usual.' This word captures the essence of the phrase 'it's its own square, ' as it refers to something that is not like anything else.