constant

1 - Engineers are constantly trying to evaluate new ways of analyzing and testing the combustion process in automobile engines.

2 - New materials and new products are constantly coming into use and leading to significant shifts, in consumer demands.

3 - When rainfall occurs regularly, the moisture of surface soil is maintained in a constant condition.

4 - In many African and Latin American countries the rate of population growth appears to be constant or even rising but in Asia there are signs that the growth rate has peaked and is now going down.

5 - A social anxiety disorder or social phobia is the constant fear of being criticized or evaluated by other people.