English

Adjective

stackable ‎(not comparable)

1. Capable of being stacked.
2. (retail, colloquial, of a coupon or similar offer) Capable of being combined with others on a single purchase.
   • 2003, Geoffrey Litwack, Geoffrey Litwack 2002 Annual (page 461)

     With a 10% stackable coupon I can get my cost down to ∼$625 shipped, taxed for the 15" DVI LCD […]

Noun

stackable ‎(plural stackables)

1. (computing) A network switch that can be set up to operate with other network switches.