sacs

/S AE1 K S/
noun
  1. 1

    A bag or pouch inside a plant or animal that typically contains a fluid.

noun
  1. 1

    (games) A sacrifice.

    โ€œKasparov's queen sac early in the game gained him a positional advantage against Kramnik.โ€

Source: https://en.wiktionary.org/wiki/sac, https://en.wiktionary.org/wiki/sacs