depress >> /dəˈprɛs/
Definition: [transitive verb] Make (someone) feel utterly dispirited or dejected.
Example: that first day at school depressed me
Definition: [transitive verb] Reduce the level or strength of activity in (something, especially an economic or biological system)
Example: fear of inflation in America depressed bond markets
Definition: [transitive verb] Push or pull (something) down into a lower position.
Example: depress the lever