vast

1 - Since the discovery of radium early in the 20th century, there has been a pursuit to attain, contain, and use the vast amounts of energy that is released by this element.

2 - Deserts are vast, barren, rocky and sandy wastes where there is almost no rainfall and little or no vegetation.

3 - The chief reason for the popularity of television among United States advertisers is that it reaches a vast number of people at the same time.

4 - The vast majority of children in Britain (87%) attend state (local authority) schools which provide compulsory education from the age of 5 to 16 years.

5 - Biological research has, in recent times, brought to light a vast amount of knowledge concerning thousands of different forms of life including the human species.