Usage
Part of speech: noun
Definition: The manner or the amount of using; use Habit or accepted practice The ways and contexts in which spoken and written words are used, determined by a lexicographer's intuitition or from corpus analysis. # Correct or proper use of language, proclaimed by some authority. # Geographic, social, or temporal restrictions on the use of words.
Example sentence: In just a few hundred years, we will have to cover the entire surface of the Earth in solar cells if we want to continue to grow our energy usage.
Utilisation
Part of speech: noun
Definition: The act of using something.