一席[isseki] sitting
運転席[untenseki] driver's seat (in a car)
宴席[enseki] banquet
会席[kaiseki] meeting place
会席膳[kaisekizen] elaborate dinner tray

会席料理[kaisekiryouri] set of dishes served on an individual tray for entertaining guests
外野席[gaiyaseki] outfield bleachers
滑席[kasseki] sliding seat
寄せ席[yoseseki] musical hall
議席[giseki] parliamentary seat

仮装舞踏会[kasoubutoukai] masquerade ball
仮面舞踏会[kamenbutoukai] masquerade ball
足踏み[ashibumi] stepping
踏まえる[fumaeru] to be based on
踏み外す[fumihazusu] to miss one's footing

踏み固める[fumikatameru] to tread down
踏み荒す[fumiarasu] to trample down
踏み込む[fumikomu] to step into (e.g. someone else's territory)
踏み留まる[fumitodomaru] to stay on
踏出す[fumidasu] to step forward