Installation refers to the act of setting up or putting in place something new or previously arranged. Here are some synonyms that can be used to replace the word installation. The term "implementation" refers to the act of putting a plan into action, while "deployment" applies to the distribution or programming of software. "Assembly" is used for putting together a complicated item like machinery. The word "establishment" is suitable when creating something that will remain for an extended period. Lastly, "arrangement" is ideal when referring to the organization of something specific. All of these options provide a slightly different take on the standard meaning of installation, making them suitable alternatives for a range of contexts.