Pit bike bogging low revs. 3. For over 70 years, the Pennsylvania Institute of Technology has been dedicated to preparing students for rewarding careers. Welcome to Pittsburgh International Airport (PIT). 2. The meaning of PIT is a hole, shaft, or cavity in the ground. Pit or PIT may refer to: Polynomial identity testing, the problem of efficiently determining whether two multivariate polynomials are identical. To set in direct opposition or competition: a war that pitted brother against brother. A pit is a large hole that is dug in the ground. View flight info, security wait times, parking, shopping & dining options, terminal map & more! 1. Hello everyone! We are PIT - Paranormal Investigation Team.