Inject in refers to instilling, imbuing or infusing certain traits or substances into an object or a system. While inject in is commonly utilized in the medical field, it can also be applied to various contexts, such as computers, economics, and management. The word "infuse," which means to plant, impart or introduce something into someone or something else, is a synonym for inject in. "Insert," on the other hand, refers to putting something inside, whereas "imbed" means to fix something deeply inside. Other synonyms for inject in include "instill," "introduce," "interject," and "inoculate." All of these words portray a sense of implanting something into another thing or being.