| noun | a mental state characterized by a pessimistic sense of inadequacy and a despondent lack of activity |
| noun | a long-term economic state characterized by unemployment and low prices and low levels of trade and investment |
| noun | a sunken or depressed geological formation |
| noun | sad feelings of gloom and inadequacy |
| noun | a period during the 1930s when there was a worldwide economic depression and mass unemployment |
| noun | an air mass of lower pressure; often brings precipitation “a low moved in over night bringing sleet and snow” |
| noun | a state of depression and anhedonia so severe as to require clinical intervention |
| noun | a concavity in a surface produced by pressing “he left the impression of his fingers in the soft mud” |
| noun | angular distance below the horizon (especially of a celestial object) |
| noun | pushing down “depression of the space bar on the typewriter” |
| slump | verb | fall heavily or suddenly; decline markedly |
| depress | verb | press down |