Married

• Title 1, Chapter 1, Section 7 of the U.S. Code defines marriage as a legal union between one man and one woman as husband and wife.
  
  

Single

• The term single can apply to an unmarried person according to the FreeDictionary.com Legal section. It can also refer to someone who is a widow.
  
  

Separated

• U.S. Legal defines separation as a court order declaring that a couple no longer lives together and the issues concerning the marriage have been resolved. The separated couple cannot remarry others.
  
  

Divorced

• WrongDiagnosis.com defines divorce as the legal dissolution of an officially recognized marriage relationship. The divorced couple can remarry others.
  
  

Living With Partner

• According to the U.S. Census Bureau, living with a partner could mean that two females, two males (same-sex domestic partnership) or a male and female (co-habitating) are living together.
  
  

Warning

• For tax purposes, consult the IRS definitions of marital status.