What is the meaning of tension?

noun

• Psychology) a state of mental or emotional strain or suspense. (
  • usage: "he suffered from fatigue and emotional tension"; "stress is a vasoconstrictor"
  • synonyms: tenseness, stress
• The physical condition of being stretched or strained.
  • usage: "it places great tension on the leg muscles"; "he could feel the tenseness of her body"
  • synonyms: tensity, tenseness, tautness
• A balance between and interplay of opposing elements or tendencies (especially in art or literature. )
  • usage: "there is a tension created between narrative time and movie time"; "there is a tension between these approaches to understanding history"
• Physics) a stress that produces an elongation of an elastic physical body. (
  • usage: "the direction of maximum tension moves asymptotically toward the direction of the shear"
• Feelings of hostility that are not manifest.
  • usage: "he could sense her latent hostility to him"; "the diplomats' first concern was to reduce international tensions"
  • synonyms: latent hostility
• The action of stretching something tight.
  • usage: "tension holds the belt in the pulleys"