[n] the act of devising something
[n] a device that very useful for a particular job
[n] any improvised arrangement for temporary use
[n] the faculty of contriving; inventive skill; "his skillful contrivance of answers to every problem"
[n] an artificial or unnatural or obviously contrived arrangement of details or parts etc.; "the plot contained too many improbable contrivances to be believable"
[n] an elaborate or deceitful scheme contrived to deceive or evade; "his testimony was just a contrivance to throw us off the track"
appliance, contraption, convenience, devisal, dodge, gadget, gismo, gizmo, lash-up, stratagem, widget