kill off meaning

Verb: kill off  kil óf

1. Kill en massé; kill on a large scale; kill many
   - exterminate

Derived forms: kills off, killing off, killed off

Type of: kill

[American slang]
v. To kill or end completely; destroy. The factory dumped poisonous wastes into the river and killed off the fish. The president suggested a new law to Congress but many members of Congress were against the idea and they killed it off. Mother made Nancy practice her dancing an hour every day; Nancy got tired of dancing and that killed off her interest.

• kill so or an animal off:    [American slang]to ...
• in at the kill:     (figurative)  ...
• in on the kill:    [American idiom]pr ...

Examples

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1. the author kills off her hero in chapter7
2. the invader kill off all the inhabitant of the village
3. in the process, the titans kill off an entire colony
4. the insecticide will kill off the insect pests
5. frost can kill off a young plant