Street fighter combo terminology

Newbie Saikyo Dojo
1

I tried searching but i cant find a full terminology guide. What does do the b and xx stand for. (b.HK, st.LK xx EX tatsu). f.HP. Is “f” fierce or forward. Im trying to learn some combos and i cant find a guide on these terms

2

I think this: The SRK Glossary - WIP is what you’re looking for.