Tipp

noun
  1. A colloquial or informal term used to refer to a tip or gratuity given to someone for their service. noun
    After the meal, he left a generous tipp for the waiter.
    She always appreciates a good tipp from satisfied customers.
  2. A slang term for a piece of advice or a helpful hint. noun
    Here's a tipp: always double-check your work before submitting it.
    He gave me a tipp on how to improve my golf swing.