Correct spelling

visible

Correct spelling, explanation: the origin of the word visible is the Latin verb videre, which used to mean to see. Then, the word appeared in Old French as visibilis, and finally, in Middle English, it entered English. In modern language the word visible functions as an adjective.

Definition of visible:
1. adjective – can be seen,
Always wear visible clothes in bright colors when you ride a bike at night.
2. adjective – someone who attracts a lot of public attention,
As a visible candidate, he is a probable winner of the election.

Expressions with visible:
Some common expressions include: visible to the naked eye, visible signs of something, remain visible
It is going to be the first time in history that the comet will be visible to the naked eye.
Unfortunately, there are some visible signs of cancer that make him look really bad.
The doctor told me that the scars will remain visible for the rest of my life.

Incorrect spelling

visable

Incorrect spelling, explanation: one of the most common adjective endings in English is -able. However, depending on the word, the spelling of the ending might change slightly. Exactly that happens in the case of the word visible, which features the -i letter instead of -a. Many English users are unaware of that and spell the word as visable, which is wrong.