1. Signboard: This is the most common meaning. It refers to a sign, usually over a shop or business, that indicates its name and type of business.
2. Ensign: This meaning is less common. It refers to a flag flown on a ship or by a military unit, often as a symbol of national identity.
It's important to look at the context to determine which meaning is intended.
For example:
* "The baker's enseigne was a colorful painting of a loaf of bread." (signboard)
* "The American enseigne was raised on the mast of the ship." (flag)