Dependence (behavioral medicine), a continuum of physical and psychological attachments related to the concept of addiction

Chemical dependency, a need for a substance so strong that it becomes necessary to have this substance to function properly

Dependent Personality Disorder, a psychiatric condition

Dependency theory, an economic worldview

Co-dependency, a behavioural condition

Dependent area or dependent territory, a classification of territory, especially a region that is not a sovereign state, but the possession of such.

a join dependency, in computer science, occurs when a join operation is performed

Coupling (computer science), also called dependency, a state in which one object uses a functionality of another object

Dependency (UML), a relationship between two elements in the Unified Modeling Language

Dependent type, in computer science and logic, a type which depends on a value

Dependency (project management), a link amongst a project's terminal elements

Dependent Records, a record label

Dependency relation, a type of binary relation in mathematics and computer science.

Dependent variable, in experimental design, a factor whose values in different treatment conditions are compared

Dependent Music, a record label

Dependant (law), a person who depends on another as a primary source of income. For example, a minor child, under the age of majority, is a dependant of his or her parent and the existence of the dependant enables the provider, such as a parent or guardian, to claim a deduction for the purpose of income tax calculations