| A | B |
| DYADIC RELATIONSHIP | Relationship between two people that involves some kind of closeness and mutual affection |
| COMMITMENT | The decision to love someone and maintain the love over time |
| ROMANTIC LOVE | Type of relationship that is high in passion and intimacy, but low in commitment |
| RITUALS | Prescribed sets of actions often connoted by symbolic value and usually adopted by religions and social groups through history |
| SOCIAL SUPPORT | The emotional, verbal, and material help received by others |
| DYADIC WITHDRAWL | The dimished involvement in outside social networks by a couple in a romantic relationship |
| MIXED-MODE FRIENDSHIP | Friendships which begin online and progress and continue to offline settings |
| HOOKING UP | Casual sexual activity with no strings attached between heterosexual people who are strangers or breif acquaintances |
| HOMOPHOBIA | The irrational fear of homosexuals |
| PUBLIC DISPLAY OF AFFECTION | The physical show of affection in the view of other people |
| CULTURAL UNIVERSALS | Patterns or traits that are common to all human cultures |
| SEXUAL NORMS | The rules and expectations by which society channels and regulates the sexual behavior of its members |
| GENITAL INFIBULATION | The ritual cutting of the inner labia and surgical closure of the outer labia |
| CONTRACEPTION | Use of devices or procedures to prevent pregnancy |
| BODY IMAGE | Individual's positive feelings toward sexuality |
| LIBIDO | Sexual desire |
| SEXUAL ABSTINENCE | Practice of refraining from any sexual behavior or only from vaginal-penile intercourse |
| CYBERSEX | Virtual sexual activities practiced on the internet |
| REPLACEMENT-LEVEL FERTILITY | Number of children necessary for women to replace themselves and their partners in the population, usually maintained at 2, 1 |
| FERTILITY | The occurence of childbearing in a country's |