The phrase "break it down" means to simplify a complex task or concept into smaller, more manageable parts. Some synonyms for "break it down" include "deconstruct," "analyze," "dissect," "fragment," "divide," and "separate." Each of these words refers to breaking something larger into smaller pieces in order to better understand it. Additionally, "breakdown," "explanation," "dismantle," and "systematize" are also synonyms that relate to the process of breaking something down into pieces. Regardless of the specific word used, the goal of "breaking it down" is to make something easier to understand and tackle step by step.