A blight is something that spoils or damages something, or a disease that affects plants, or a general state of neglect and disrepair in an urban area.
(noun)
- An ugly mark that destroys a painting is an example of a blight.
- A disease caused by mildew or fungus that harms a plant is an example of blight.
- Run-down buildings are an example of urban blight.
To blight is to spoil or destroy something or to cause an urban area to become run-down and neglected.
(verb)
- When you destroy the efforts of someone, this is an example of a time when you blight progress.
- When rotting buildings spoil an urban area, this is an example of blight.