stress-n; 5 Senses

Sense Number 1: emphasis on a syllable in speech

Commentary: STRESS[+quality][+emphasis][+acoustic][+syllable] [+action][+pronunciation][+emphasized]

Place the stress on the second syllable.
His stress of the first syllable on every word makes it hard to understand him.
Some English nouns and verbs are differentiated only by word stress.

WordNet 3.0 Sense Numbers: 1

Sense Number 2: emotional duress or tension

Commentary: STRESS[+state][+emotional][+tension]

Mary feels a lot of stress at work these days.
He was under a lot of stress when he made that decision.
Sally manages her stress through regular exercise.

WordNet 3.0 Sense Numbers: 2

Sense Number 3: physical tension or load, unit measure of physical force

Commentary: STRESS[+force][+physical][+tension] [+quantity][+measure][+unit][+force]

The distribution of stress is uniform across the bar.
The patient has a stress fracture in her heel.
The earthquake relieved the stress that had built up along the fault line.
John is an engineer who designs stress tests for home appliances.

WordNet 3.0 Sense Numbers: 5

Sense Number 4: thematic emphasis, attention, focus

Commentary: STRESS[+state][+attention][+directed] [+quality][+emphasis][+conceptual][+thematic]

Her voice teachers places a lot of stress on diction and posture.
The stress was more on achieving accuracy than speed.
He has started to lay greater stress on the government's role in industry.

WordNet 3.0 Sense Numbers: 3

Sense Number 5: a cause or source of duress, worry

Commentary: STRESS[+cause][+tension]
NOTE: refers to an external source of stress for a subject
NOTE: in the form 'stress of X' and 'X BE stress'

She was unable to cope with the ordinary stresses of life.
The client's changing demands have been a stress for our whole department.
Individual soldiers cope with the stress of combat differently.

WordNet 3.0 Sense Numbers: 4