because it was
for instance
A policy of appeasement often encourages even more demands.
Appeasement.
You could use something important, for instance "School" or something you like.
the most important use of solar energy is to make electricity.
oxygen is most important use is for breathing
What in meant by an instance
The most important use is as foods.
Respiration
the most important usage for water is drinking and bathing
another word for instance
One alternative is to use "for instance" to introduce an example.