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English definition of “sucker”

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sucker

noun uk   /ˈsʌk.ər/ us    //

sucker noun (STICKING DEVICE)

[C] something that helps an animal or object to stick to a surface: The leech has a sucker at each end of its body. informal for suction cup

sucker noun (PLANT PART)

[C] specialized biology a new growth on an existing plant that develops under the ground from the root or the main stem, or from the stem below a graft (= part where a new plant has been joined on)

sucker noun (FOOLISH PERSON)

[C] informal disapproving a person who believes everything they are told and is therefore easy to deceive: You didn't actually believe him when he said he had a yacht, did you? Oh, Annie, you sucker!be a sucker for sth informal to like something so much that you cannot refuse it or judge its real value: I have to confess I'm a bit of a sucker for musicals.

sucker noun (THING/PERSON)

[C] US informal used to refer to a thing or person that is unpleasant or difficult: I've been working on that paper for weeks and almost have the sucker finished. He's a nasty little sucker, isn't he?

sucker noun (SWEET)

[C] US informal for lollipop
(Definition of sucker from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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