To modify the design of an existing system, organization, process or product in order to make it more effective, efficient or responsive.(verb)
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Use "re-engineer" in a sentence
"Granted, real engineers are able to reverse engineer, and re-engineer (as Edwin Armstrong was able to do with De Forest's amplifier), but the term "reverse engineer" makes no distinction between an Edwin Armstrong and a copycat."
"Chefs have been commissioned to re-engineer traditional foods to use other ingredients."
"We do know that the method ICM use to "re-balance" (i.e. re-engineer the figures to suit past admitted voting habits) is not universally accepted."