Collins English-English Dictionary

blight [blaɪt]

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

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

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

4. 4. n an ugly urban district

5. 5. n the state or condition of being blighted or spoilt

6. 6. vb to cause or suffer a blight

7. 7. vt. [tr] to frustrate or disappoint

8. 8. vt. [tr] to spoil; destroy

9. 9. vt. [Etymology] C17: perhaps related to Old English blæce rash; compare bleach