The phrasal verb "catch on" is predominantly used in informal contexts but can be found in certain formal contexts as well, particularly in business and marketing discussions. It has two primary meanings: firstly, it means to understand or realize something, often after a period of confusion or uncertainty, as in "I finally caught on to what she was explaining." Secondly, it refers to something becoming popular or widely accepted, such as "The trend caught on with teenagers." The usage typically involves gradual realization or adoption, and it can refer to individuals or groups. "Catch on" often finds its place in conversations where spreading knowledge or trend development is being discussed, making it invaluable for discussions about cultural or social phenomena. Its informal nature makes it less suitable for strictly formal writing, although it can add a conversational tone to marketing materials or business presentations when discussing trends.
B1
PreIntermediate
1. To begin to understand something or figure out what is going on.
After a few minutes of explaining, she began to catch on to the concept.
It took him a while to catch on to the new software, but he eventually did.
2. To become popular or fashionable among people.
The new dance craze is starting to catch on with teens across the country.
The trend caught on quickly and soon everyone was wearing bright yellow shoes.