v.溃烂；化脓；恶化
n.脓疮；溃烂
A dirty wound will probably fester. 一个弄脏了的伤口,可能会化脓。
It's lucky that the wound did not fester. 幸好伤口没有化脓。
The crisis will fester. 危机将会进一步恶化。
