blight

American  

[blahyt] / blaɪt /

noun

1. Plant Pathology.

   1. the rapid and extensive discoloration, wilting, and death of plant tissues.

   2. a disease so characterized.

2. any cause of impairment, destruction, ruin, or frustration.

   Extravagance was the blight of the family.

   Synonyms:

   bane, scourge, plague, curse

3. the state or result of being blighted or deteriorated; dilapidation; decay.

   urban blight.

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verb (used with object)

1. to cause to wither or decay; blast.

   Frost blighted the crops.

2. to destroy; ruin; frustrate.

   Illness blighted his hopes.

verb (used without object)

1. to suffer blight.

blight British  

/ blaɪt /

noun

1. any plant disease characterized by withering and shrivelling without rotting See also potato blight

2. any factor, such as bacterial attack or air pollution, that causes the symptoms of blight in plants

3. a person or thing that mars or prevents growth, improvement, or prosperity

4. an ugly urban district

5. the state or condition of being blighted or spoilt

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verb

1. to cause or suffer a blight

2. (tr) to frustrate or disappoint

3. (tr) to spoil; destroy

blight Scientific  

/ blīt /

1. Any of numerous plant diseases that cause leaves, stems, fruits, and tissues to wither and die. Rust, mildew, and smut are blights.

2. The bacterium, fungus, or virus that causes such a disease.

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Other Word Forms

• blightingly adverb

Etymology

Origin of blight

First recorded in 1605–15; of uncertain origin

Explanation

A blight is a disease that hurts plants and makes their leaves wither. It can also affect neighborhoods. Urban blight refers to a part of the city where things are falling apart. Blight rhymes with bright, but it’s the opposite of sunshine; instead of making plants grow, it cripples them. The Irish Potato Famine was an example of a blight. In 1845, more than a third of the potato crops were ruined. The plants turned black and their leaves dried up and people who relied on potatoes for most of their meals also withered and experienced extreme hardship and hunger. You might want to think of it this way: a blight makes people — or plants — fight for their lives.

Example Sentences

"These measures will ensure we stay one step ahead of waste criminals and protect the communities, businesses and environment that they blight," he added.

From BBC • Mar. 19, 2026

What struck me instead is how ably Garbus presents what Rupert Murdoch and men like him have wrought as not just a blight on society but a pox on all our houses, including his own.

From Salon • Mar. 14, 2026

The trial is just the latest in a long line of controversies to blight the once-revered abode, which is currently owned by developer Steven “Bo” Belmont, CEO of “real estate crowdfunding firm” Belwood Investments.

From MarketWatch • Mar. 3, 2026

Top-down org charts are a blight, but one artificial intelligence will put an end to.

From The Wall Street Journal • Mar. 1, 2026

South Shore hadn’t yet tilted the way other neighborhoods had—with the better-off people long departed for the suburbs, the neighborhood businesses closing one by one, the blight setting in—but the tilt was clearly beginning.

From "Becoming" by Michelle Obama

Related Words

• affliction
• canker
• decay
• eyesore
• fungus
• infestation
• mildew
• pest
• scourge