懐疑[kaigi] doubt
危疑[kigi] fear
疑い[utagai] doubt
疑い深い[utagaibukai] doubting
疑う[utagau] to doubt

疑り[utaguri] doubt
疑わしい[utagawashii] doubtful
疑雲[giun] cloud of suspicion
疑義[gigi] doubt

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