The term 'be attentive' can be broken down into eight different crossword solutions: HARK (4 letters), ALERT (5 letters), RAPT (4 letters), LISTEN (6 letters), HEAR (4 letters), FOCUS (5 letters), ANEAR (5 letters), and TUNEIN (6 letters). HARK means to LISTEN carefully, ALERT means to be watchful and prepared for danger, RAPT means to be deeply engrossed in something, LISTEN means to pay attention to sound, HEAR means to perceive sound, FOCUS means to concentrate on one thing, ANEAR means to LISTEN closely, and TUNEIN means to pay attention to something. PAYHEED (7 letters) is another way of saying to be attentive. All of these words are related to the idea of being attentive, which means to give careful consideration or attention to something.