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

威権[iken] authority
永子作権[eikosakuken] perpetual land lease
永住権[eijuuken] permanent residence
越権[ekken] going beyond authority
王権[ouken] royalty

権殿[gonden] temporary shrine (houses the object in which the deity resides when main shrine is under repairs)
加入権[kanyuuken] NTT permission-to-procure-a-phone-line
既得権[kitokuken] vested rights
棄権[kiken] abstaining from voting
棄権者[kikensha] non-voter

歓心を買う[kanshinwokau] to win favour
競争売買[kyousoubaibai] auction
故買[kobai] buying stolen goods
購買[koubai] procurement
購買力[koubairyoku] buying power

思惑買い[omowakugai] speculative buying
衝動買い[shoudougai] impulsive buying
人身売買[jinshinbaibai] slave trade
人買い[hitokai] slave traffic
青田買い[aotagai] speculatively buying a rice harvest, while the fields are still green