The term 'BIG FIRST FOR BABIES' is a crossword solution that can be broken down into four parts. The FIRST part, 'BIG, ' is an adjective meaning large or important. The second part, 'FIRST, ' is an adverb meaning before anything else. The third part, 'FOR, ' is a preposition indicating direction or purpose. The fourth part, 'BABIES, ' is a noun referring to young children. Taken together, the phrase suggests that something important should come FIRST FOR babies. This could refer to providing them with basic needs such as food, shelter, and clothing, or it could refer to giving them the opportunity to learn and grow in a safe and nurturing environment.