Definition
A person is single if he has never been married, or whose marriage has been
annulled.
Married is the marital status of a person who has been united in matrimony with another person of opposite sex through a religious or civil rites, or who lives together consensually with another as husband or wife. To be considered married, the couple must still be living together; or, if living apart from each other, the separation must only be temporary.
A person whose marriage has been annulled will be considered as single.
Report as widowed a person who has been married before; whether formally or
consensually, if his marital partner has died. In case the widowed has remarried, his marital status is married.
A person is considered divorced/separated, if the partner has left permanently, with or without legal sanctions.