The term 'stir to action' can be defined as arousing, rousing, inciting, or prodding someone to take action. The crossword solutions for this term are AROUSE (6 letters), ROUSE (5 letters), INCITE (6 letters), and PROD (4 letters). All of these words have similar meanings, but they each have slightly different nuances. For example, 'AROUSE' implies a more sudden and intense emotion, while 'ROUSE' implies a more gradual awakening. 'INCITE' implies a more aggressive motivation, while 'PROD' implies a more gentle nudge.