spread a net; set a trap; lay an ambush
Meanings
2 senses · 5 examplesverb
to spread a net; to lay an ambush; to set up a dragnet
formalMetaphorically used for police or other authorities deploying forces strategically to apprehend suspects. Implies a coordinated, wide-area operation. Mostly used in formal or official contexts.
To catch the fugitive, the police spread a net nationwide.
The kidnappers hid in the mountains, so the public security officers laid an ambush at the foot of the hill and waited.
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For this arrest operation, a dragnet has been secretly set up at both the airport and the train station.
verb
to set a trap; to lay a snare
neutralExtended metaphorical usage, not limited to law enforcement. Can describe any situation where someone is setting a cunning plan to catch or deceive others.
Merchants set a trap with various coupons to attract customers to spend.
This is an elaborately designed scam, setting a trap specifically for the greedy.