What does the word tip mean?

Usage examples for tip

  1. They don't know how he got onto it, but it looks like he had a tip from some source or other." – Dixie Hart by Will N. Harben
  2. " I say, you're a tip- top chap," said Sam. – The Young Musician or, Fighting His Way by Horatio Alger
  3. May I see the tip end of the club? – Empire Builders by Francis Lynde