depression
US /dɪˈpreʃ.ən/
UK /dɪˈpreʃ.ən/

1.
a state of feeling sad and hopeless that can last for weeks or months and prevent you from living a normal life
:
•
She has been suffering from severe depression for years.
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Talking to a therapist can help manage depression.
2.
a long and severe recession in an economy or market
:
•
The Great Depression of the 1930s had a global impact.
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Governments try to prevent economic depression through various policies.
3.
an area that is lower than the surrounding surface
:
•
There was a slight depression in the road after the heavy rain.
•
The meteor created a large depression in the ground.