胃炎[ien] gastritis
炎光[enkou] flame
炎暑[ensho] heat wave
炎症[enshou] inflammation
炎症病巣[enshoubyousou] inflamed part

炎上[enjou] blazing up
炎色[enshoku] flame (color, colour)
炎天[enten] blazing heat
炎天下[entenka] under blazing sun

火焔放射器[kaenhoushaki] flamethrower
気焔万丈[kienbanjou] in high spirits
光焔[kouen] light and flame
紅焔[kouen] red flame
火焔[kaen] flame

情焔[jouen] burning passion
気焔[kien] high spirits
焔硝[enshou] gunpowder
残焔[zanen] lingering heat (in autumn)

仄仄[honobono] dimly
平仄[hyousoku] meter (in Chinese poetry)
仄めかし[honomekashi] hint
仄めかす[honomekasu] to hint at
仄めく[honomeku] to be seen dimly

仄暗い[honogurai] gloomy
仄白い[honojiroi] dimly white
仄聞[sokubun] casually hearing
仄か[honoka] faint
仄声[sokusei] the three tones of Chinese that exclude the high-level, or first, tone