en·gi·neer 
(ĕn′jə-nîr)
(ĕn′jə-nîr)n.
1. One who is trained or professionally engaged in a branch of engineering.
2. One who operates an engine.
3. One who skillfully or shrewdly manages an enterprise.
tr.v. en·gi·neered, en·gi·neer·ing, en·gi·neers
1. To plan, construct, or manage as an engineer.
2. To alter or produce by methods of genetic engineering: bacteria that are genetically engineered to produce insulin.
3. To plan, manage, and bring about by skillful acts or contrivance: engineer a business takeover; engineer social changes by legislation.
[Middle English enginour, from Old French engigneor, from Medieval Latin ingeniātor, contriver, from ingeniāre, to contrive, from Latin ingenium, ability; see ENGINE.]