Noun
1. a device that is very useful for a particular job
2. the faculty of contriving; inventive skill;
"his skillful contrivance of answers to every problem"3. an elaborate or deceitful scheme contrived to deceive or evade;
"his testimony was just a contrivance to throw us off the track"4. an artificial or unnatural or obviously contrived arrangement of details or parts etc.;
"the plot contained too many improbable contrivances to be believable"5. any improvised arrangement for temporary use
6. the act of devising something