旋風【せんぷう】
whirlwind, sensation, commotion, hullabaloo
旋律【せんりつ】
melody, tune
旋回【せんかい】
revolution, rotation, turning, circling, swiveling, turning (an aircraft or ship)
凱旋【がいせん】
triumphant return, returning in triumph
旋盤【せんばん】
lathe
螺旋【らせん】
spiral, helix, screw
斡旋【あっせん】
good offices, kind offices, services, influence, recommendation, mediation, intercession, conciliation, acting as a go-between