| A | B |
| cohabitation | living together without being married |
| adultery | sex between a married person and someone other than their marriage partner |
| civil partnership | legal ceremony giving a homosexual couple the same legal rights as a husband and wife. |
| contraception | preventing pregnancy from occurring |
| faithfulness | staying with your marriage partner and only having sex with them. |
| homosexuality | sexual attraction to the same sex |
| nuclear family | mother, father and children living together as one unit. |
| pre-marital sex | sex before marriage |
| procreation | making a new life |
| promiscuity | having sex with a number of partners without commitment |
| re-constituted family | where 2 sets of children become one family when their divorced parents marry each other |
| re-marriage | marrying again after being divorced from a previous marriage. |