The word "disassemble" refers to the act of taking apart or separating a structure, machine, or device into its components or parts. The opposite of this term is to assemble, which refers to the process of putting things together to form a whole. Another antonym for disassemble is to construct, which means to build or create something from various materials or components. To unite or join is another antonym for disassemble, as it involves bringing separate parts together to form a complete object. Similarly, to connect or merge can also be antonyms for disassemble, as they involve combining separate parts to form a whole.