However, you could use these options depending on the context:
* Battery: This is the most common term used for a group of cannons, particularly in military contexts.
* Park: This term is used for a group of cannons, usually in a defensive position.
* Broadside: This term refers to the simultaneous firing of all cannons on one side of a ship.
* Salvo: This term refers to the simultaneous firing of multiple cannons.
You could also use a more general term like "group," "array," or "collection" if the context doesn't require a specific military term.