IPA: /nɒnˈbreɪkəbl/
KK: /nɑnˈbreɪkəbl/
Something that cannot be easily broken or damaged.
The nonbreakable glass is perfect for outdoor use.
Nonbreakable → It is formed from "non-" (meaning not) and "break" (from Old English "brecan", meaning to shatter or destroy) and "-able" (meaning capable of). The word "nonbreakable" means not capable of being broken or shattered.
Think of 'not' ('non-') being combined with 'shatter' ('break') and 'capable of' ('-able') — this helps you remember that nonbreakable means something that cannot be broken.