The term SET TO ASSEMBLE can be broken down into two parts: KIT (3 letters) and SET TO ASSEMBLE. KIT stands for 'Keep In Touch', which is a phrase used to describe the process of staying in contact with someone. SET TO ASSEMBLE is a phrase that means to prepare something for assembly, such as a piece of furniture or an electronic device. Together, these two terms indicate that one should keep in touch with someone while preparing something for assembly.