adjective. Capable of being focused.

What is the correct plural of focus?

noun. fo·​cus | \ ˈfō-kəs \ plural foci\ ˈfō-​ˌsī also -​ˌkī \ also focuses.

What is focusable?

Focusable means that it can gain the focus from an input device like a keyboard. Input devices like keyboards cannot decide which view to send its input events to based on the inputs itself, so they send them to the view that has focus.