noun.
A person who is qualified or professionally engaged in any branch of engineering.
noun.
A person trained in a natural science that applies such knowledge towards a practical objective.
noun.
A person who, given a practical scientific problem involving the physical world and a specific set of goals and constraints, finds a technical solution to the problem that satisfies those goals within those constraints. The goals and constraints may be technical, social, or business related.
noun.
A person who operates an engine (such as a locomotive).
verb.
To design, construct or manage something as an engineer.
verb.
To alter or construct something by means of genetic engineering.
verb.
To plan or achieve some goal by contrivance or guile; to wangle or finagle.