The word "re fit" has several synonyms that can be used to convey a similar meaning. One of the most common synonyms is "renovate", which means to restore or improve a building or structure. Another synonym is "revamp", which refers to the process of making significant changes to something in order to bring it up to date or improve its performance. "Refurbish" is also a useful synonym, which denotes the process of repairing or renovating an item or space to its former condition. "Remodel" is another synonym that refers to the alteration of a space or structure to make it more functional or aesthetically pleasing. All these synonyms convey the idea of improving or modernizing something that has become outdated or worn out.