Verb: heat up
- Gain heat or get hot
"The room heated up quickly";
- heat, hot up [Brit, informal]
- Make hot or hotter
"the sun heats up the oceans";
- heat
- Make more intense
"Emotions were heated up";
- hot up [Brit, informal], screw up [informal]
Derived forms: heated up, heating up, heats up
Type of: alter, change, change state, compound, deepen, heighten, intensify, modify, turn