live wire
The term "live wire" can refer to both an electrical component and a description of a highly energetic person.
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Definition
B2Electrical Engineering
(technical)A wire that carries an electric current and is capable of delivering a shock.
Example
- Always be cautious around a live wire to avoid electric shocks.
B2Informal
(informal)Someone who is very energetic, lively, and enthusiastic.
Example
- At the party, John was a real live wire, dancing and chatting with everyone.
Similar
Terms that have similar or relatively close meanings to "live wire":