Question

make a meaningful sentence using the both the word :world, important

Answer 1

Hey Mate...

Here's your answer....

This important experiment is the biggest experiment in the world.

Answer 2

We are asked to use the word “world and important” to make a meaningful sentence.  

We can write the same in this way as “This seems to be an essential issue to think about the nature of the world so all have a substantial way of life and ought not to be overlooked.”  

Often two words are used in a sentence to make it meaningful and should always give some direction.