Once the unit of analysis has been identified, we need to define the population.

Top managers need to define a decision method for their companies.

Even if it is an abstract discussion, you'd need to define what you mean by "force".

It seems to me Obama needs to define what he stands for a bit more clearly.

To get to the real meaning of such concepts we need to define them in several ways.

Need to define the criteria on which a decision to back out will be made.

If you're in a start up mode, you will need to define your economic needs.

Although you'd need to define art to be able to tell whether one thing or another did not qualify.

Why do I need to define my business in detail?

It is no longer enough to set objectives; we need to define instruments.