What is the meaning of pressure?

noun

• The force applied to a unit area of surface; measured in pascals (SI unit) or in dynes (cgs unit. )
  • usage: "the compressed gas exerts an increased pressure"
  • synonyms: pressure level, force per unit area
• A force that compels.
  • usage: "the public brought pressure to bear on the government"
• The act of pressing; the exertion of pressure.
  • usage: "he gave the button a press"; "he used pressure to stop the bleeding"; "at the pressing of a button"
  • synonyms: press, pressing
• The state of demanding notice or attention.
  • usage: "the insistence of their hunger"; "the press of business matters"
  • synonyms: imperativeness, insistence, insistency, press
• The somatic sensation that results from applying force to an area of skin.
  • usage: "the sensitivity of his skin to pressure and temperature was normal"
  • synonyms: pressure sensation
• An oppressive condition of physical or mental or social or economic distress.
• The pressure exerted by the atmosphere.
  • synonyms: atmospheric pressure, air pressure

verb

• (v.) ()
  • synonyms: coerce, hale, squeeze, force
• Exert pressure on someone through threats.
  • synonyms: blackmail, blackjack