six-pack

noun4

1. •
   A collection of six of something bundled together, especially six cans of beer or soda pop.

   • If you're thirsty, there's a six pack in the kitchen.
2. •
   A set of carburetors totaling six venturis via three 2-barrel units.
3. •
   A highly developed set of abdominal muscles.

   • Are you going to tone your arms, build a six pack or tighten up the old rump? — 2005
4. •
   (US, informal) A selection of six photographs, including one of a suspect, used for identification by a witness.

   • Officer Bahash then obtained a copy of Grant's photograph from the DMV and placed it in a six-person photograph array (also known as a “six-pack”) for possible identification by two earlier victims. — 2008