Mental health

• Depression (mood), a state of low mood and aversion to activity

• Mood disorders characterized by depression are commonly referred to as simplydepression, including: DysthymiaMajor depressive disorder

Biology

• Depression (kinesiology), an anatomical term of motion, refers to downward movement, the opposite of elevation

• Depression (physiology), a reduction in a biological variable or the function of an organ

• Central nervous system depression, physiological depression^[2]of the central nervous system that can result in loss of consciousness

Earth science

• Depression (geology), a landform sunken or depressed below the surrounding area

• Depression (weather), an area of low atmospheric pressure characterized by rain and unstable weather

Economics

• Depression (economics) refers to a prolonged, significant downturn in economic activity within one or more economies. The Great Depression, occurring in the 1930s, stands as a stark example of such a severe economic downturn. It is often referred to simply as “the depression.” Another notable instance is the Long Depression, which occurred from 1873 to 1896 and was also known as the Great Depression at the time.