One of dcs' teachers is a russian professor. He is referred to as Dr. At a meeting at the school the HOY said that he was an "instructor" which was why he was allowed to teach 6th form and i got the impression that he was not allowed to teach lower than that. However when he arrived 3 years ago he was teaching my dd's year 7 class. He is given my DS yr 12 some extra tuition during school time.
DCs really like him as a teacher and have a lot of respect for him. Just curious as to the different definition.