How to spell BXRSA correctly?

For the misspelling "bxrsa", here are some possible correct suggestions: 1) "bytes", referring to units of digital information; 2) "brasa", a Portuguese word meaning "grilled meat"; 3) "borax", a mineral used in cleaning products; 4) "brush", a tool for grooming hair or applying paint; 5) "bursa", a fluid-filled sac in the body.