Jump Jumped Meaning Involved Situation Notice Synonym Dive

Meaning: If you jump in, you get involved in a situation as soon as you notice it.

• jump in Kevin saw the other team's players punching his team-mate, so he jumped in and tried to stop them.
  
  
• jump in If the government had jumped in and stopped banks from giving out those sub-prime loans, the economic crisis could have been averted.