The sun is vital to human life.
Proper training is vital to first aid.
Water is vital for survival. i.e we need water to live.
Without the use of the respiratory system, our vital organs wouldn't function properly
In today's military telecommunications is vital to communicating with ground troops.
Feudalism was of vital importance in dailey life in Medieval Europe.
These doughnuts are vital to my daily sugar intake level.
It was vital that she double checked her math homework. There was, therefore, much vitality involved with school.
If we may learn something new from them, they remain vital to us. A nutritious diet and regular exercise are vital to good health. She survived the cancer because it never spread to her vital organs.
Trees are a reliable and vital resource to our community.
The natural satchel held the vital vials. The black satchel held the important papers. Drop the satchel!
Preparation is vital before a trip. Her preparation came in handy. She didn't need much preparation for dinner.
The circulatory system is vital for life.