vote bank - definition and synonyms

noun [countable] politics 

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/ˈvəʊt ˌbæŋk /
singularvote bank
pluralvote banks
  1. in South Asia, a large group of voters from a single community who always support a particular party or candidate in elections

    A time came when his assumed vote bank deserted him.

    They say it is the main opposition party which is indulging in vote bank politics.

    This meaning is based on one submitted to the Open Dictionary on 11/07/2015