b, c, u, y are letters that make 'cubby'
BB, by, cub, Cu are words within 'cubby'
1 possible definitions for 'cubby'
Under this definition, cubby is a noun and has the following properties:
cubbyhole, snuggery, snug have the same meaning as 'cubby'
'cubby' can be a type of room.
snug is a derivative of cubby.