To make communal; to convert from private to common or shared ownership or control, particularly in British English.
From 'communal' plus the '-ise' suffix (British English spelling of '-ize'), meaning 'to make or cause to become.' Reflects political movements advocating for shared resources.
The British spelling 'communalise' versus American 'communalize' shows how even spelling differences can carry political weight—the British version became more common during socialist movements of the 1900s.
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