1. [mid-19C+] (orig. US, also bis, bizney, bizniz, bizz) business; also attrib.
2. energy, ‘hustle’.
3. [late 19C+] as the biz, the real thing (and to be respected as such).
4. [late 19C+] a situation, with no actual economic ‘business’ attached.
5. see business n.
see do the business under business n.
[1990s+] (Can.) to work as a prostitute.
[late 19C–1910s] wonderful! excellent!; also as n. meaning a wonderful situation or thing.