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blight.

A diseased condition suffered by a plant; specifically, a complete and rapid chlorosis, browning, then death of plant tissues such as floral organs, leaves, branches, or twigs, especially one caused by a fungus; a mildew, a rust, a smut.

6 characters1 syllables approx.English language

Meaning & usage

noun/blaɪt/General-American, Received-Pronunciation
  1. A diseased condition suffered by a plant; specifically, a complete and rapid chlorosis, browning, then death of plant tissues such as floral organs, leaves, branches, or twigs, especially one caused by a fungus; a mildew, a rust, a smut.

    countable · uncountable
  2. The cause of such a condition, often unseen but believed to be airborne; specifically, a bacterium, a virus, or (especially) a fungus; also, an aphid which attacks fruit trees.

    countable · uncountable
  3. A state of cloudy, humid weather.

    broadly · countable · uncountable
  4. A diseased condition of the face or skin; specifically, bleeding under the conjunctiva of the eye, a form of skin rash, or a palsy of the face due to cold.

    broadly · countable · dated · uncountable
  5. Something that impedes development or growth, or spoils any other aspect of life.

    countable · figuratively · uncountable
  6. A rundown and unsightly condition of an urban area; also, such an area.

    countable · figuratively · specifically · uncountable
Where this word comes from

The etymology of the noun is uncertain; suggested derivations include the following: * possibly related to Middle English blichening (“mildew or rust on grain, blight”), possibly related to Middle English bliken (“to gleam, shine; to turn pale”), from Old English blīcan (“to shine, sparkle”) (whence modern English blike (“(obsolete) to gleam, shine”); also compare Old Norse blikna (“to grow pallid”)), from Proto-West Germanic *blīkan (“to shine”), from Proto-Germanic *blīkaną (“to gleam, shine”), from Proto-Indo-European *bʰleyǵ- (“to shine”); or * since sense 2.2 refers to a diseased condition of the skin, possibly from Middle English *bleighte, *bleȝte, from Old English blǣcþa (“leprosy”) (related to blǣċe (“an itching skin-disease”) and blǣċo (“leprosy; paleness”)), from Proto-West Germanic *blaik, ultimately from Proto-Germanic *blaikaz (“pale; white”), from Proto-Indo-European *bʰleyǵ- (“to shine”). If so, the word is a doublet of bleak. The verb is derived from the noun.

verb/blaɪt/General-American, Received-Pronunciation
  1. To affect the fertility or growth of (a plant) with a blight (noun sense 1.1), especially one caused by a fungus; to blast, to mildew, to smut.

    transitive
  2. To affect (a body part) with a disease.

    broadly · dated · transitive
  3. To impede the development or growth of (an aspect of life); to damage, to ruin, to spoil.

    figuratively · transitive
    Those obscene tattoos are going to blight your job prospects.
  4. Of a plant: to suffer blight (noun sense 1.1).

    intransitive
    This vine never blights.
Where this word comes from

The etymology of the noun is uncertain; suggested derivations include the following: * possibly related to Middle English blichening (“mildew or rust on grain, blight”), possibly related to Middle English bliken (“to gleam, shine; to turn pale”), from Old English blīcan (“to shine, sparkle”) (whence modern English blike (“(obsolete) to gleam, shine”); also compare Old Norse blikna (“to grow pallid”)), from Proto-West Germanic *blīkan (“to shine”), from Proto-Germanic *blīkaną (“to gleam, shine”), from Proto-Indo-European *bʰleyǵ- (“to shine”); or * since sense 2.2 refers to a diseased condition of the skin, possibly from Middle English *bleighte, *bleȝte, from Old English blǣcþa (“leprosy”) (related to blǣċe (“an itching skin-disease”) and blǣċo (“leprosy; paleness”)), from Proto-West Germanic *blaik, ultimately from Proto-Germanic *blaikaz (“pale; white”), from Proto-Indo-European *bʰleyǵ- (“to shine”). If so, the word is a doublet of bleak. The verb is derived from the noun.

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.