(lie in) ambush(-ment), lay (lie in) wait

Concise Bible Dictionary:

A stratagem used in war of placing warriors in secret places, from which they can issue forth when least expected. Palestine with its many ravines and caves was well suited for such tactics. (Josh. 8:2-22; 2 Chron. 13:13; 2 Chron. 20:22; Jer. 51:12).

Strong’s Dictionary of Hebrew Words:

Transliteration:
’arab
Phonic:
aw-rab’
Meaning:
a primitive root; to lurk
KJV Usage:
(lie in) ambush(-ment), lay (lie in) wait