battery

n.

1. Cells that generate or store electricity

   dry cell, wet cell, storage cell, storage battery, flashlight battery, solar battery, atomic battery, electric cell, voltaic battery, alkaline battery.

2. An organized unit of artillery

   gunnery unit, artillery corps, field guns, cannon, primary or main battery, secondary battery.

3. In baseball, a pitching team

   pitcher and catcher, mound team, pitching combination.

4. The act of beating

   assault, mayhem, attack, thumping, beating, physical violence, battering, pounding, mugging, slugging*.

5. A group of similar things

   set, series, array; see collection 2.