sucker - definition and synonyms

noun [countable] 

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  1. 1
    informal someone who is easily tricked or easily persuaded to do something

    One poor sucker had actually given her his life’s savings.

  2. 2
    a round structure on the bodies of some insects, frogs, and octopuses that allows them to stick to surfaces
  3. 3
    a plant that grows from the bottom of another plant’s stem or roots