Also found in: Dictionary, Thesaurus.
1. Lit. [for flames] to expand upward suddenly. The fire blazed up and warmed all of us. As the fire blazed up, we moved away from the fireplace.
2. Fig. [for trouble, especially violent trouble] to erupt suddenly. The battle blazed up again, and the fighting started to become fierce. As the battle blazed up, the cowards fled into the hills.