A person is called single if he or she is not married, not in a civil union, and not in a sexual or romantic relationship. In a more general sense, the word also means that person currently has no exclusive partner, like a boyfriend or girlfriend. Such people can be classified into different types:

In English, male singles used to be called bachelors, female singles used to be called spinsters (or bachelorettes, more recently). In general, the word single is used more often now, because it also does not make a difference between the two sexes.