stacker

stack +‎ -er

• (General American) IPA^(key): /ˈstækɚ/
• Rhymes: -ækə(ɹ)

stacker (plural stackers)

1. Any person or thing that stacks.
   • 1991, Joan H. Cantor, Charles C. Spiker, Lewis Paeff Lipsitt, Child Behavior and Development: Training for Diversity, page 168:

     As behavioral scientists we are not good block stackers — we don't replicate enough or build systematically across knowledge bases.

   1. A worker who stacks the shelves in a supermarket.
   2. A participant in sport stacking.
2. Any device allowing items to be stacked.

   a spring-loaded plate stacker in a cafeteria

   1. An output bin in a document feeding or punch card machine (contrast with hopper).
3. (informal) A person who collects precious metal in the form of various small objects such as coins and bars.

• rackets, restack, retacks, tackers