stress

(noun): (Cause of) discomfort.
(noun): Serious danger.
(noun): An aversive state of stress to which a person cannot fully adapt.
(noun): A seizing of property without legal process to force payment of a debt.
(noun): The thing taken by distraining; that which is seized to procure satisfaction.
(noun): A physical, chemical, infective agent aggressing an organism.
(noun): Aggression toward an organism resulting in a response in an attempt to restore previous conditions.
(noun): The internal distribution of force across a small boundary per unit area of that boundary (pressure) within a body. It causes strain or deformation and is typically symbolised by σ or τ.
(noun): Force externally applied to a body which cause internal stress within the body.
(noun): Emotional pressure suffered by a human being or other animal.
(noun): The emphasis placed on a syllable of a word.
(noun): Emphasis placed on words in speaking.
(noun): Emphasis placed on a particular point in an argument or discussion (whether spoken or written).
(noun): Distress; the act of distraining; also, the thing distrained.
(verb): To apply force to (a body or structure) causing strain.
(verb): To apply emotional pressure to (a person or animal).
(verb): To suffer stress; to worry or be agitated.
(verb): To emphasise (a syllable of a word).
(verb): To emphasise (words in speaking).
(verb): To emphasise (a point) in an argument or discussion.

Go easy on him, he's been under a lot of stress lately.
Some people put the stress on the first syllable of “controversy”; others put it on the second.
“Emphasis” is stressed on the first syllable, but “emphatic” is stressed on the second.
I must stress that this information is given in strict confidence.