Thought (up) is an abstract concept that can be defined as the process of forming ideas, opinions, or images in the mind. The crossword solutions for this term are CONCOCTED (9 letters), IDEATED (7 letters), DEVISED (7 letters), and DREAMT (6 letters). CONCOCTED means to create something by combining various elements, IDEATED means to form an idea or plan, DEVISED means to invent or contrive something, and DREAMT means to have a vision or idea while sleeping. All of these words refer to the act of thinking, which is the definition of the term thought (up).