The word "in-fuses" means to fill or pervade with a quality or emotion. There are several synonyms of the word "in-fuses" that can be used interchangeably in different contexts. The most common synonyms include "imbues," "permeates," "saturates," "penetrates," "impregnates," and "instils." Each of these synonyms carries a unique connotation and can be used to describe the process of filling or inspiring something or someone with a particular quality or emotion. For instance, if one wants to describe filling a room with a particular scent, the word "perfumes" could be used synonymously with "in-fuses." Overall, using synonyms for "in-fuses" can bring more variety and depth to one's writing and communication.