The word "un-combines" refers to the act of separating things which were previously combined. A few synonyms for this word are "disentangle," "disassemble," "disconnect," "deconstruct," and "dismantle." "Disentangle" implies freeing something from entanglement or complexity. "Disassemble" means to take apart or separate something into its component parts. "Disconnect" refers to the separation of one object from another. "Deconstruct" emphasizes the analytical aspect of separating something into its constituent parts. Finally, "dismantle" means to take apart or strip something down, often with the goal of removing it completely. All these synonyms can be used in place of "un-combines" depending on the context of the sentence.