Noun

1. The force applied to a unit area of surface; measured in pascals (si unit) or in dynes (cgs unit)
2. A force that compels
3. The act of pressing; the exertion of pressure
4. The state of demanding notice or attention
5. The somatic sensation that results from applying force to an area of skin
6. An oppressive condition of physical or mental or social or economic distress
7. The pressure exerted by the atmosphere

Verb

1. To cause to do through pressure or necessity, by physical, moral or intellectual means :
2. Exert pressure on someone through threats