Meaning of the word "catch on to" in English

What does "catch on to" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

catch on to

US /kætʃ ɑn tə/
UK /kætʃ ɒn tə/

Phrasal Verb

1.

to understand or realize something, especially after some initial confusion or difficulty

Example:
It took him a while to catch on to the new system.
The police quickly caught on to their plan.
2.

to become popular or fashionable

Example:
The new trend is starting to catch on to the younger generation.
I wonder if this new dance will ever catch on to the public.