Noun

• S: (n) depression (a mental state characterized by a pessimistic sense of inadequacy and a despondent lack of activity)
• S: (n) depression, slump, economic crisis (a long-term economic state characterized by unemployment and low prices and low levels of trade and investment)
• S: (n) natural depression, depression (a sunken or depressed geological formation)
• S: (n) depression (sad feelings of gloom and inadequacy)
• S: (n) Depression, Great Depression (a period during the 1930s when there was a worldwide economic depression and mass unemployment)
• S: (n) low, depression (an air mass of lower pressure; often brings precipitation) "a low moved in over night bringing sleet and snow"
• S: (n) depressive disorder, clinical depression, depression (a state of depression and anhedonia so severe as to require clinical intervention)
• S: (n) depression, impression, imprint (a concavity in a surface produced by pressing) "he left the impression of his fingers in the soft mud"
• S: (n) depression (angular distance below the horizon (especially of a celestial object))
• S: (n) depression (pushing down) "depression of the space bar on the typewriter"