If you meant to type "bda" but made a spelling mistake, some possible correct suggestions could be "bad", "bed", "bud" or "band". Double-checking your spelling can save you from misunderstandings.
baa I heard a loud baa coming from the sheep in the meadow.
BIA The Bureau of Indian Affairs (BIA) is responsible for the administration and management of 55.7 million acres of land held in trust by the United States for American Indians, Indian tribes, and
boa The python was mistaken for a boa constrictor.