Definition of "Stress" :
noun: the relative prominence of a syllable or musical note (especially with regard to stress or pitch)
"He put the stress on the wrong syllable."
noun: (physics) force that produces strain on a physical body
"The intensity of stress is expressed in units of force divided by units of area."
noun: (psychology) a state of mental or emotional strain or suspense
"Stress is a vasoconstrictor."
noun: difficulty that causes worry or emotional tension
"She endured the stresses and strains of life."
noun: special emphasis attached to something
"The stress was more on accuracy than on speed."
verb: put stress on; utter with an accent
verb: to stress, single out as important
verb: test the limits of