1. An occupation that requires extensive education or specialized training and/or experience: James wanted to become a teacher, the same profession as his parents, and so he had to study at least four years at the university in order to achieve his objective.
2. The members of a particular occupation: Many students at the college decided to go into the teaching profession, thinking that they could improve the motivation of the children in their neighborhoods.
3. An affirmation of a religious conviction or faith: Greg and Susan believed their marriage would last forever since they had the same spiritual-minded profession of belief which they lived by respectfully.