| A | B |
| Ecumenical Council | A world wide gather of Bishops |
| Pope John XXIII | The "caretaker" pope who opened the Second Vatican Council |
| Pope John Paul II | The first Polish Pope |
| Collegiality | Bishops working together with the pope |
| Laity | non-ordained people of the Church |
| Clergy | Ordained members of the Church |
| Lay Ministers | non-ordained people, the laity, taking ministerial positions in the Church that priest formally filled |
| Vernacular | common language of the people |
| Nostra Aetate | A Vatican II document that means, in our time |
| Lumen Gentium | A Vatican II document that means, Light of the Nations |