Cunning; craft; artful practice.
An artful trick; sly artifice; a feat so dexterous that the manner of performance escapes observation.
Dexterous practice; dexterity; skill.
Cunning and artifice in general.
Military deception or artifice.
A tactic or artifice designed to gain the upper hand, especially one involving underhanded dealings or deception.
Specifically, such a tactic or artifice in military operation.