The term 'fix in the mind' is a phrase used to describe the process of committing something to memory. The crossword solutions for this phrase are ETCH (4 letters), NOTE (4 letters), IMBED (5 letters), LEARN (5 letters), and INGRAIN (7 letters). Each of these words can be used to describe the process of fixing something in the mind, as they all imply a sense of permanence and repetition. Etching and noting are both physical actions that can be used to help remember something, while embedding, learning, and ingraining are more abstract concepts that involve internalizing information.