- 火焰山 huǒyànshān insurmountable obstacleA figurative expression for a daunting challenge or a severe trial that is difficult to overcome.
- 众人拾柴火焰高 zhòngrénshícháihuǒyàngāo collective strengthMany hands make light work; collective effort leads to greater results.
- 火焰喷射器 huǒyànpēnshèqì flamethrower