catch on
Intermediate (B1)informal
To finally understand something, or (for a new idea/fashion) to start becoming popular with lots of people.
"It took a few lessons, but the students eventually caught on to how the grammar rule worked."
Hear it in context
‘The Big Bang Theory’ but It’s All About the Comic Book Store
The Big Bang Theory · 22:15
You catch on quick.
Your Favorite Characters from ‘The Big Bang Theory’ Ranked (Fan Voted)
The Big Bang Theory · 1:10
you catch on quick.
The Incredible Wildlife of Hidden Forests | BBC Earth
BBC Earth · 1:43
They'll soon catch on.
100 Iconic Moments From Sir David Attenborough | BBC Earth
BBC Earth · 239:37
They'll soon catch on.
The Most Unique Creatures of our Hidden Forests | BBC Earth
BBC Earth · 90:37
They'll soon catch on.