The term 'KNOWING ABOUT' can be broken down into four crossword solutions: ONTO (4 letters), UPON (4 letters), INON (4 letters), and WISETO (6 letters). ONTO means to move or be directed towards a particular place or object. UPON is a preposition that means on the subject of or concerning. INON is an archaic word meaning in or into. Lastly, WISETO is an archaic word meaning wise or prudent. All of these words are related to the concept of knowledge and understanding.