Defenders of English, however, say it is a vital tool in the modern world.

Urban models are a vital tool for town/city planning and development.

Our minds are a vital tool in the search for God.

The internet is a vital tool for any modern business.

Students particularly need to own such a vital tool.

It can be a vital and highly effective investigative tool.

The test card was a vital tool in its day, but has become far less important.

In dysfunctional families, these three vital tools are used against the children.

Internet access has become a vital tool in development and social progress since the start of the 21st century.

We should not, nevertheless, abandon this vital tool before it is time to do so.