- burn up phrasal
- verb
1 DESTROY (intransitive, transitive burn something up) if something burns up or is burnt up, it is completely destroyed by fire or great heat2 BURN BRIGHTER (I) if a fire burns up, it gets stronger and brighter3 BE HOT (I) spoken if someone is burning up, they are very hot4 MAKE SB ANGRY (transitive burn someone up) informal especially AmE to make someone angry: The way he treats her really burns me up.5 be burned up with anger/jealousy etc to have your mind full of a strong emotion6 burn up energy/fat/calories etc to use energy etc by doing physical exercise.2 noun (C)1 an injury or mark caused by fire, heat, or acid: severe/minor burns (=burns that are serious or not serious)2 the burn informal a painful hot feeling in your muscles when you exercise a lot: Go for the burn.3 especially ScotE a small stream
Longman dictionary of contemporary English. 2004.