What's the difference between dobber and dubber?

Dobber

Definition:

• (n.) See Dabchick.
• (n.) A float to a fishing line.

Example Sentences:

Dubber

Definition:

• (n.) One who, or that which, dubs.
• (n.) A globular vessel or bottle of leather, used in India to hold ghee, oil, etc.

Example Sentences: