Cannon-ball dream meaning is explained below using 1 different source. Each interpretation is shown with its source.

Interpretation 1 — Gustavus Hindman Miller

This means that secret enemies are uniting against you.

For a maid to see a cannon-ball, denotes that she will have a soldier sweetheart.

For a youth to see a cannon-ball, denotes that he will be called upon to defend his country.

Source: Ten Thousand Dream Interpretation • Author: Gustavus Hindman Miller