依估贔屓[ekohiiki] favoritism
依估地[ikoji] obstinate

估券[koken] dignity
依估[iko] unfairness

クーポン券[kuuponken] coupon (ticket)
グリーン券[guriinken] green (car) ticket
ビール券[biiruken] beer coupon
会員券[kaiinken] membership card
回数券[kaisuuken] book of tickets

割引券[waribikiken] discount coupon or ticket
株券[kabuken] stock certificate
急行券[kyuukouken] express ticket
金券[kinken] gold certificate