Heat Started Meaning Discussion Contest Conflict Intense Exciting

Meaning: If something like a discussion, a contest or a conflict heats up, it gets more intense, more exciting or more dangerous.

• heat up When they got onto the topic of human rights, the discussion heated up and people got angry and began shouting.
  
  
• heat up The match started to heat up after the referee made a bad decision and the players got frustrated and started pushing and shoving.