004 [ b = ㅂ ] '바' pronunced 'ba'

Korean is divided into consonants and vowels.
consonant : ㄱㄴㄷㄹㅁ ㅂ ㅅㅇㅈㅊㅋㅌㅍㅎ
vowels : ㅏ ㅑㅓㅕㅗㅛㅜㅠㅡㅣ


The sixth consonant 'ㅂ' sounds like 'b' and the first vowels 'ㅏ' sounds like 'a'.
Two letters be combined to become '바' sounds like 'ba'.

Same pronunciation as 'Bar(바)'

Now, you can read some words that start with '바'.
바나나 /banana/ means banana.

There is a K-Pop that starts with a '바나나(banana)'
https://youtu.be/rW9r_1ys2ec

바다 /bada/ means sea.

There is a K-Pop that named '바다'.
https://youtu.be/WC-us_yNsSU