1. A young or small chicken: This is the most common meaning of "biddy." It's a playful, affectionate term for a young chicken.
2. A woman, often elderly or small: This meaning of "biddy" can be considered somewhat derogatory, as it implies the woman is old-fashioned, gossipy, or interfering.
3. A child: This meaning of "biddy" is less common, but it can be used in some contexts to refer to a child, particularly a girl.
4. A type of short, stout coat: This meaning of "biddy" is even less common than the others and is primarily used in Ireland.
The specific meaning of "biddy" will depend on the context and the speaker's intention. If you're unsure, it's best to ask for clarification.