The term 'At Attention' is a military phrase used to describe a position of alertness and readiness. The two crossword solutions for this term are 'ERECT' (5 letters) and 'RAPT' (4 letters). ERECT is defined as standing upright, while RAPT is defined as being deeply engrossed in something. Together, these two words describe the posture of someone who is At Attention, standing upright and focused on their task.