Burn to a crisp and Burn up

Burn up and burn to a crisp are semantically related. In some cases you can use "Burn up" instead a verb phrase "Burn to a crisp".

Burn up verb - To disturb the peace of mind of (someone) especially by repeated disagreeable acts.

Burn to a crisp and burn up are semantically related. You can use "Burn to a crisp" instead a verb "Burn up".