Ambuscade
AM'BUSCADE, noun [Eng. bush.]
1. Literally, a lying in a wood, concealed, for the purpose of attacking an enemy by surprise: hence, a lying in wait, and concealed in any situation, for a like purpose.
2. A private station in which troops lie concealed with a view to attack their enemy by surprise; ambush.
AM'BUSCADE, verb transitive To lie in wait for, or to attack from a concealed position.