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)
斡旋【あっせん】
good offices, kind offices, services, influence, recommendation, mediation, intercession, conciliation, acting as a go-between