enter one's mind

enter (one's) mind

To occur to one suddenly. After that idea entered my mind, I was able to alter the experiment and finally achieve some success.See also: enter, mind

enter one's mind

Also, enter one's head. Occur to one, come into one's consciousness. This expression is most often used negatively, as in It didn't enter my mind that he'd want to join us, or Run for office? It never entered my head. See also: enter, mind