1. The word bombastic is a bit bombastic.
  2. Lisp has an "s" in it.
  3. Flammable and inflammable mean the same thing.
  4. hippopotomonstrosesquipedaliophobia is the fear of long words.
  5. "I'm down for X" and "I'm up for X" mean the exact same thing.
  6. Invaluable means super valuable.