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English definition of “cotton on”

cotton on

informal phrasal verb with cotton     /ˈkɒt.ən/ US  /ˈkɑː.t̬ən/ verb
to begin to understand a situation or fact : I'd only just cottoned on to the fact that they were having a relationship .Understanding and comprehending
(Definition of cotton on from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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