Single Letter or Digit to Replace Words in Chat

Single Letter or Digit to Replace Words in Chat
Beb
Seec
Okayk
Okay coolkk
Arer
Youu
Whyy
Oho
Ate8
For4
To/Too2
Won/One1
Greatgr8
Matem8
Waitw8
Laterl8r/l8a
Skatesk8
Skatersk8r
Tomorrow2mro
BeforeB4
Thereforethr4
Once1ce
And&/nd
Yourur/yr/u’re/You’re