Observe CAREFULLY is an important phrase that can be used in many different contexts. The term 'OBSERVE' means to look at something closely and attentively, while 'CAREFULLY' implies paying attention to detail. The crossword solutions for this phrase are 'NOTE' and 'WATCH'. 'NOTE' suggests taking mental or written notes of what is being observed, while 'WATCH' implies looking at something for a period of time. Both of these words emphasize the importance of paying close attention when observing something.