Build up and Heated up

Build up verb - To become greater in extent, volume, amount, or number.

Heated up and build up are semantically related In some cases you can replace phrase "Heated up" with "Build up", this terms are similar.

Heated up adjective - Made warm or hot (`het' is a dialectal variant of `heated').

Build up and heated up are semantically related in adjoin topic. Sometimes you can use "Build up" instead a verb phrase "Heated up", if it concerns topics such as severe, strengthen, add to.