Thinking hard is an important part of problem solving and can be done in a variety of ways. The crossword solutions for the term THINK HARD include FOCUS (5 letters), COGITATE (8 letters), WONDER (6 letters), CEREBRATE (9 letters), TRYTOREMEMBER (13 letters), and RACKONESBRAINS (14 letters). Focusing on the task at hand, cogitating or pondering the issue, wondering about potential solutions, cerebrating or using one's intellect, trying to remember the answer, and racking one's brains are all ways to think hard and come up with a solution.