stress

1 of 2

noun

1
: constraining force or influence: such as
a
: a physical, chemical, or emotional factor that causes bodily or mental tension and may be a factor in disease causation
reduce stress and inflammation
stress hormones
Body aches … are a sign that your body is … recovering from a period of stress.Heidi Cope
b
: a state resulting from a stress
especially : one of bodily or mental tension resulting from factors that tend to alter an existent equilibrium
job-related stress
… compelling evidence that interacting with dogs can reduce stressSandra Rose Salathe
c
: strain, pressure
drought stress
… the environment is under stress to the point of collapse …Joseph Shoben
Expanding energy planning … will be critical to help reduce demand and relieve the stress on the grid …Benjamin Storrow
d
: a force exerted when one body or body part presses on, pulls on, pushes against, or tends to compress or twist another body or body part
especially : the intensity of this mutual force commonly expressed in pounds per square inch
… engineers found more than 100 locations where the stresses of reentry damaged the heat shield. Eric Berger
e
: the deformation caused in a body by such a force
a stress fracture
To reduce the amount of stress on your back, bend your knees when you lift something heavy.
2
: emphasis, weight
lay stress on a point
Mr. Fagin laid great stress on the fact of his having taken Oliver in …Charles Dickens
3
: intensity of utterance given to a speech sound, syllable, or word producing relative loudness
The stress is on the first syllable when "protest" is a noun.
4
a
: relative force or prominence of sound in verse
These stress patterns are defined in groupings, called feet, of two or three syllables.Bennet Bergman
b
: a syllable having relative force or prominence
5
: accent sense 5a
In a measure of 4/4 meter, the first beat will have the strongest stressJoe Mulholland and Tom Hojnacki
6
archaic : intense effort or exertion

stress

2 of 2

verb

stressed; stressing; stresses

transitive verb

1
: to lay stress on : to give special attention to : emphasize
stressed the importance of teamwork
… the governor and her team have both continued to stress the need for infrastructure …Dave Boucher
Musicians most often create syncopation by stressing an off‐beat …Michael Pilhofer and Holly Day
2
informal : to experience bodily or mental tension because of a situation, circumstances, etc. : to be worried or anxious about something
The situation is really stressing me.
often used with out
Don't let it stress you out.
3
: to subject to physical or psychological stress
stressing the equipment
this traffic is stressing me out
4
: to subject to phonetic stress : to pronounce (a syllable or word) in a louder or more forceful way than other syllables or words : accent
stressed vowels

intransitive verb

: to feel stress
stressing about the big exam
Try not to stress about it.
often used with out
It's making me stress out.

Examples of stress in a Sentence

Noun She uses meditation as a way of reducing stress. Hormones are released into the body in response to emotional stress. She is dealing with the stresses of working full-time and going to school. He talked about the stresses and strains of owning a business. Carrying a heavy backpack around all day puts a lot of stress on your shoulders and back. To reduce the amount of stress on your back, bend your knees when you lift something heavy. The ship's mast snapped under the stress of high winds. measuring the effects of stresses on the material Verb The union stressed the need for stricter safety standards. The risks involved in the procedure should be stressed. Some people stress the second syllable of “harassment,” while others stress the first. When she said, “We need lots of money,” she stressed the word “lots.” It's not an important decision and it isn't worth stressing over.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Traditionally, one of the key justifications for teamwork has been its psychological benefits—the energy that comes from collaboration, the reduced stress of shared responsibility, the excitement of building on each other’s ideas. François Candelon, Fortune, 31 Oct. 2025 Where to Go Your mini-moon should be intimate, indulgent, and stress-free—luxe places that feel remote but are easy to get to. Jim Augerinos, Travel + Leisure, 31 Oct. 2025
Verb
For this reason, tweens tend to prefer gifts that are popular or trending, like the viral Sol de Janeiro perfume or a starter skincare routine made with gentle ingredients that won’t stress out their young skin. Anja Webb, Parents, 31 Oct. 2025 What To Know Xi stressed cooperation in his opening remarks to leaders of the 21-member APEC, which includes the United States. Robert Birsel, MSNBC Newsweek, 31 Oct. 2025 See All Example Sentences for stress

Word History

Etymology

Noun

Middle English stresse stress, distress, short for destresse — more at distress

First Known Use

Noun

14th century, in the meaning defined at sense 1

Verb

1540, in the meaning defined at transitive sense 3

Time Traveler
The first known use of stress was in the 14th century

Browse Nearby Words

Cite this Entry

“Stress.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stress. Accessed 5 Nov. 2025.

Kids Definition

stress

1 of 2 noun
1
a
: a force that acts when one body or part of a body presses on, pulls on, pushes against, or tends to squeeze or twist another body or part of a body
b
: the change in shape caused in a body by such a force
c
: a physical, chemical, or emotional factor that causes bodily or mental tension and may be involved in causing some diseases
also : a state of tension resulting from a stress
2
: special importance given to something : emphasis, weight
lay stress on a point
3
: relative force or loudness of sound
"finally" has the stress on the first syllable
4
stressless
-ləs
adjective

stress

2 of 2 verb
1
: to subject to physical or emotional stress
stressing the equipment
this traffic is stressing me out
2
: to pronounce with stress
stress the last syllable
3
: emphasize
stressed the importance of teamwork
4
: to feel stress
stressing about the big test

Medical Definition

stress

1 of 2 noun
1
a
: a force exerted when one body or body part presses on, pulls on, pushes against, or tends to compress or twist another body or body part
especially : the intensity of this mutual force commonly expressed in pounds per square inch
b
: the deformation caused in a body by such a force
2
a
: a physical, chemical, or emotional factor that causes bodily or mental tension and may be a factor in disease causation
b
: a state of bodily or mental tension resulting from factors that tend to alter an existent equilibrium
3
: the force exerted between teeth of the upper and lower jaws during mastication

stress

2 of 2 transitive verb
: to subject to stress
a patient stressed by surgery

More from Merriam-Webster on stress

Last Updated: - Definition revised
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