IPA: /aʊtˈbɜrn/
KK: /aʊtˈbɜrn/
To burn completely or to be consumed by fire; also means to burn more intensely than something else.
The campfire began to outburn the surrounding trees, creating a bright glow in the night.
Past: outburned
Past Participle: outburned
Outburn → It is formed from "out-" (meaning beyond or outside) and "burn" (from Old English "byrnian", meaning to consume with fire). The word "outburn" means to burn beyond or more intensely than something else.
Think of burning something 'beyond' ('out-') the usual intensity — that's why outburn means to burn more intensely.