It's possible it's a:
* Misspelling: Perhaps you meant a word like "beard," "bird," or "bred."
* Slang or dialect term: "Berd" might be used in a particular region or community with a unique vocabulary.
* Made-up word: It could be a fictional word or a word created for a specific purpose.
Could you provide more context about where you encountered this word? That might help determine its meaning or origin.