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

おけさ節[okesabushi] style of Japanese folk song associated with Niigata Prefecture
双節棍[nunchaku] nunchaku (two linked fighting sticks)
一音節[ichionsetsu] monosyllable
一節切り[hitoyogiri] one-jointed bamboo musical instrument
音節[onsetsu] syllable

鰹節[katsubushi] katsuobushi
環節[kansetsu] segment (of worm)
関節[kansetsu] joints (knee joint, elbow joint, etc.)
関節リューマチ[kansetsuryuumachi] rheumatoid arthritis
関節炎[kansetsuen] arthritis