The term 'looked into' can be defined by the crossword solutions PROBED (6 letters), explored (8 letters), xrayed (6 letters), feltout (7 letters), and sawabout (8 letters). Probing is the act of searching for information or answers, exploring is the act of examining something in detail, xraying is the act of using x-rays to examine something, feeling out is the act of testing the waters to see how someone will react, and sawabout is the act of looking around. All of these terms can be used to describe the act of looking into something, which is the act of investigating or researching something.