
Cotton on
Realization Delay
The phrase often implies a delayed understanding, suggesting it took time to 'cotton on'.

Everyone knew about the surprise party before he cottoned on.
Subtle Nuance
'Cotton on' can imply a gradual realization, not an instant one.

She slowly cottoned on to the hidden meaning in his words.
Informal Use
This phrase is informal and more common in conversational English.

I cottoned on to the joke late but still laughed.
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