Simonise is a verb that refers to the act of polishing or buffing a surface until it shines. If you're looking for synonyms that mean the same thing, you could try words like burnish, shine, gloss, smooth, or buff. These words all describe the process of making something smooth and shiny, whether it's a car, a floor, or a piece of furniture. Other options might include words like varnish, enamel, lacquer, or coat, which all involve adding a protective layer to a surface to make it shine and look better. Whatever word you choose, if you're looking to make something sparkle and shine, there's a synonym out there that can do the job.