stress
US /stres/
UK /stres/

1.
2.
emphasis given to a particular syllable or word in speech, typically through a higher pitch or greater intensity
:
•
The stress is on the first syllable of 'present' (noun).
•
He put particular stress on the word 'never'.
1.
give particular emphasis or importance to (a point, statement, or idea)
:
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The report stresses the need for immediate action.
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He stressed that safety was their top priority.
2.
subject to mental or emotional strain
:
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Don't stress yourself out over small things.
•
The constant demands began to stress him.