Definition of cotton on
: to begin to understand something : to catch on It took a while, but they are finally starting to cotton on. —often + to She cottoned on to the fact that I like her.
Word by Word Definitions
: a soft usually white fibrous substance composed of the hairs surrounding the seeds of various erect freely branching tropical plants (genus Gossypium) of the mallow family
: a plant producing cotton
: one grown for its cotton
Seen and Heard
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