harm

1 of 2

noun

1
: physical or mental damage : injury
the amount of harm sustained by the boat during the storm
2
: mischief, hurt
I meant you no harm.

harm

2 of 2

verb

harmed; harming; harms

transitive verb

: to damage or injure physically or mentally : to cause harm (see harm entry 1) to
No animals were harmed in the making of the film.
the national interest … was gravely harmed by this attackElmer Davis
harmer noun
Choose the Right Synonym for harm

injure, harm, hurt, damage, impair, mar mean to affect injuriously.

injure implies the inflicting of anything detrimental to one's looks, comfort, health, or success.

badly injured in an accident

harm often stresses the inflicting of pain, suffering, or loss.

careful not to harm the animals

hurt implies inflicting a wound to the body or to the feelings.

hurt by their callous remarks

damage suggests injury that lowers value or impairs usefulness.

a table damaged in shipping

impair suggests a making less complete or efficient by deterioration or diminution.

years of smoking had impaired his health

mar applies to injury that spoils perfection (as of a surface) or causes disfigurement.

the text is marred by many typos

Examples of harm in a Sentence

Noun They threatened him with bodily harm. The scandal has done irreparable harm to his reputation. She'll do anything to protect her children from harm. They have suffered serious physical harm. These new regulations could cause lasting harm to small businesses. Verb He would never intentionally harm his children. chemicals that could harm the environment The scandal has seriously harmed his reputation.
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
But the treatment has been criticized since the early days as, variously, a Communist plot, forced mass medication and an industrial byproduct that causes more harm than good. Anna Clark, ProPublica, 18 Sep. 2025 Congress and state legislatures should investigate and hold the FDA accountable for ignoring overwhelming evidence of harm. Lila Rose, MSNBC Newsweek, 18 Sep. 2025
Verb
If a person’s disability is disturbing or harming other residents, allowing that disturbance to continue could be an unreasonable accommodation and therefore not protected by Fair Housing laws. Kelly G. Richardson, Oc Register, 19 Sep. 2025 Researchers in China have raised the possibility that an attack by thousands of cheap drones, which are easily made in large numbers, can harm expensive and complex military vessels. Prabhat Ranjan Mishra, Interesting Engineering, 19 Sep. 2025 See All Example Sentences for harm

Word History

Etymology

Noun and Verb

Middle English, from Old English hearm; akin to Old High German harm injury, Old Church Slavic sramŭ shame

First Known Use

Noun

before the 12th century, in the meaning defined at sense 1

Verb

before the 12th century, in the meaning defined above

Time Traveler
The first known use of harm was before the 12th century

Browse Nearby Words

Cite this Entry

“Harm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/harm. Accessed 20 Sep. 2025.

Kids Definition

harm

noun
ˈhärm
1
: physical or mental damage : injury
2
harm verb

Legal Definition

harm

noun
: loss of or damage to a person's right, property, or physical or mental well-being : injury
harm transitive verb

More from Merriam-Webster on harm

Last Updated: - Updated example sentences
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