IPA: /ˈfoʊkəsəbl/
KK: /ˈfoʊkəsəbl/
Able to be directed or concentrated on a specific point or subject.
The camera has a focusable lens that allows for clear images at different distances.
Focusable → It is formed from "focus" (from Latin *focus*, meaning hearth or center) and "-able" (meaning capable of). The word "focusable" means capable of being centered or directed towards a specific point.
Think of a 'center' ('focus') that can be 'directed' or 'adjusted' ('-able') — that's why focusable means something that can be focused.