IPA: /ˈsuːbər/
KK: /ˈsjuːbər/
A type of material that comes from the bark of certain trees, used for making items like wine stoppers and insulation.
The bottle was sealed with a natural suber cork to keep the wine fresh.
The word 'suber' comes from Latin 'suber' (meaning cork). It refers specifically to the cork oak tree, which produces the material known as cork.
Think of the Latin word for cork, 'suber', to remember that 'suber' refers to the material derived from the cork oak.