B

b (n) the second letter of the Filipino alphabet.

ba (adv) interrogative particle; what?

baa (id) expression of deep concern.

baba (n) mouth.

baba, (n) the act of carrying someone over one's back.

baba, bab-a (v) to carry someone over one's back.

babaan (adj) having large or big mouth.

babaan (adj) talkative.