Able to be closed or shut; designed or capable of being sealed or fastened.
From 'close' (from Old English and Old French origins) plus the suffix '-able' (meaning capable or able to be). It simply means something has the capacity to be closed.
English has two similar words—'closable' and 'closeable'—and both are correct, but language experts argue about which is better, showing how English is still being shaped by how people actually use it!
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