Definition of “sucker” - English Dictionary

“sucker” in British English

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suckernoun

uk /ˈsʌk.ər/ us /ˈsʌk.ɚ/

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.

UK 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 sucker for musicals.

(Definition of “sucker” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“sucker” in American English

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suckernoun [ C ]

us /ˈsʌk·ər/

sucker noun [ C ] (FOOLISH PERSON)

infml a person who believes everything you say and is therefore easy to deceive

infml If you are a sucker for something, you like it so much that you cannot refuse it:

Josie’s a sucker for burnt almond ice cream.

sucker noun [ C ] (THING)

infml used to refer to a thing that is surprising or that is causing trouble:

My car won’t start again, and hopefully between the two of us we can figure out how to make that sucker work.

sucker noun [ C ] (CANDY)

a lollipop

(Definition of “sucker” from the Cambridge Academic Content Dictionary © Cambridge University Press)