depression

As nouns the difference between depression and null

is that depression is depression (area that is lower than its surroundings) while null is zero, nil; the cardinal number before einn.

In geography terms the difference between depression and basin

is that depression is an area that is lower in topography than its surroundings while basin is a rock formation scooped out by water erosion.

As a proper noun Basin is

a CDP in Montana.

As an adjective gloomy

is imperfectly illuminated; dismal through obscurity or darkness; dusky; dim; clouded.

As a noun depression is

depression (area that is lower than its surroundings).

As nouns the difference between prosperity and depression

is that prosperity is the condition of being prosperous, of having good fortune while depression is depression (area that is lower than its surroundings).

As nouns the difference between bereavement and depression

is that bereavement is the state of being bereaved; deprivation; especially the loss of a relative by death while depression is depression (area that is lower than its surroundings).

As nouns the difference between delamination and depression

is that delamination is the separation of the layers of a laminar composite material as a result of repeated stress, or failure of the adhesive while depression is depression (area that is lower than its surroundings).

As an adjective bipolar

is involving or having both extremes or poles) at the same time.

As a noun depression is

an area that is lower in topography than its surroundings.

As nouns the difference between homesickness and depression

is that homesickness is the characteristic of being homesick; a strong, sad feeling of missing one's home (and often left-behind loved ones, such as family and friends) when physically away while depression is depression (area that is lower than its surroundings).

As nouns the difference between depression and derealization

is that depression is depression (area that is lower than its surroundings) while derealization is (psychology) the psychological symptom in which the world appears to be unreal, and the patient has a sense of detachment from it.

As nouns the difference between depression and ecstasy

is that depression is an area that is lower in topography than its surroundings while ecstasy is intense pleasure.

As a proper noun Ecstasy is

the drug MDMA, a synthetic entactogen of the phenethylamine family.