teacher

noun4

1. •
   a person whose job is to help others learn, especially at a school
2. •
   An indication; a lesson.

   • But if the last two years are a teacher, look for the bombastic tweets to resume before sunrise. — 2017
3. •
   The second highest office in the Aaronic priesthood, held by priesthood holders of at least the age of 14.
4. •
   The index finger; the forefinger.