2 occurrences

'Ambush' in the Bible

He lurks in ambush in the villages;In hiding places he kills the innocent;He lies in wait for the unfortunate [the unhappy, the poor, the helpless].

To shoot from ambush at the blameless [one];Suddenly they shoot at him, without fear.

Bible Theasaurus

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Strong's
Root Form
Definition
Usage
ארב 
'arab 
lay in wait , liers in wait , ambush
Usage: 42

מארב 
Ma'arab 
Usage: 5