What is the meaning of Ambush?

The act of concealing oneself and lying in wait to attack by surprise.

An attack launched from a concealed position.

The concealed position or state from which a surprise attack is launched.

The troops posted in a concealed place, for attacking by surprise; those who lie in wait.

To station in ambush with a view to surprise an enemy.

To attack by ambush; to waylay.

Source: wiktionary.org