They built a formal means of contacting one another in a crisis, including constantly monitored hot lines.

This field studies the internal structure of words as a formal means of expression.

Most languages of the world have formal means to express differences of number.

It has been retained in use as a polite and formal means of expression.

The formal means of control in occupied Europe varied greatly.

The Vatican has no formal means of enforcing the standards.

Indeed, his buildings are best appreciated as works that heighten social awareness by formal means.

An accounting system is a formal means of gathering and communicating financial data.

The Serbian regime leaves us no formal means to do this.

And this is certainly the case with the distinction between formal and informal means of social control.