cotton on

phrasal verb
cottoned on; cottoning on; cottons on

Definition of cotton on

informal
: to begin to understand something : to catch on It took a while, but they are finally starting to cotton on. often + toShe cottoned on to the fact that I like her.

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“Cotton on.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cotton%20on. Accessed 21 Sep. 2020.

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