A person, such as a spouse or lover, with whom one shares a long-term sexual relationship.
A person, such as a family member or close friend, who is important or influential in one's life: "The most important variable in successful smoking cessation is the support of significant others in the new nonsmoker's life"(Carolyn Reuben).
Main Entry: significant oth·er Pronunciation: -'&th-&r Function: noun : a person who is important to one's well-being;especially: a spouse or one in a similar relationship
