field trip; an educational outing organized by a school where students are taken out of the regular classroom environment to visit various places of interest
- a person whose job is to teach or educate people; an individual who provides instruction or education to others; for examples teachers, professores, tutors etc.
A customer who frequently switches from one service or product to another, contributing to a high churn rate. Example: "The company implemented loyalty programs to reduce the number of ... and retain more customers."