お先に[osakini] before
この先の心持ち[konosakinokokoromochi] feelings from this point on
データの先頭[deetanosentou] beginning of data
ペン先[pensaki] pen nibs
一寸先[issunsaki] an inch ahead

一足先[hitoashisaki] one step ahead
烏有先生[uyuusensei] fictitious person
縁先[ensaki] veranda edge
下馬先[gebasaki] dismounting place
火先[hisaki] flames

三鞭酒[shanpen] champagne
ランブル鞭毛虫[ranburubenmouchuu] giardia (flagellate protozoan)
ランブル鞭毛虫症[ranburubenmouchuushou] giardiasis
教鞭[kyouben] teacher's cane
御鞭撻[gobentatsu] encouragement

先鞭[senben] initiative
鞭撻[bentatsu] encouragement
鞭打つ[muchiutsu] to whip
鞭打ち症[muchiuchishou] whiplash