Meaning of the word step-in in English

What does step-in mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

step-in

US /stɛp ɪn/
UK /stɛp ɪn/

Phrasal Verb

to become involved in a difficult situation in order to help or make it stop

Example:
The government had to step in to prevent a financial crisis.
When the argument got heated, their friend decided to step in.