The term 'passed quickly' can be described by the crossword solutions of 'FLEETING' (7 letters), 'sped' (4 letters), 'spby' (4 letters), 'ranby' (5 letters), 'flewby' (6 letters), 'shotby' (6 letters), and 'spedby' (6 letters). FLEETING means to pass quickly, while sped, spby, ranby, flewby, shotby, and spedby all imply a sense of speed and quickness. All of these words suggest that something is moving quickly and passing by in a short amount of time.