Correct spelling


Correct spelling, explanation: this is the correct spelling as the word comes from an adjective visible with noun suffix, therefore the word is visibility. There is no a in the root word that would make it visability, so that is a mistake. Visibility is the correct spelling.

Definition of visibility:
noun, a description of how clearly you can see something
Weather conditions and visibility are very important when it comes to driving.
We went hiking but it was nothing special – it was raining and the visibility was terrible.

Incorrect spelling


Incorrect spelling, explanation: visability is incorrect because visibility (the correct form) comes from visible, also spelled with two i’s and no a’s. With a noun suffix, it made the word visibility and any other spelling incorrect.