IPA: /ˈoʊpənəbl/
KK: /ˈoʊpənəbl/
Something that can be opened easily or is designed to be opened.
The box is openable, so you can access the contents inside.
Openable → It is formed from "open" (from Old English "open", meaning not closed or accessible) and "-able" (meaning capable of). The word "openable" means capable of being opened.
Think of something that is 'not closed' ('open') and 'capable of' being opened ('-able'). This helps you remember that 'openable' refers to something that can be opened.