訓 ほのお ・ 音 エン
漢越音: viêm
Two 火 (fire) stacked: blazing flames; Hán Việt viêm also means inflammation, as in viêm não (encephalitis).
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
火事で家が炎上した。 (かじでいえがえんじょうした)
The house went up in flames in the fire.