直向[hitamuki] earnest
安直[anchoku] inexpensive
一直[icchoku] lining out to first base
一直線[icchokusen] straight line
鉛直[enchoku] perpendicular

下駄直し[getanaoshi] repairing clogs
開き直る[hirakinaoru] to become defiant
気を取り直す[kiwotorinaosu] to completely rethink
急転直下[kyuutenchokka] suddenly and precipitately
居直る[inaoru] to sit up properly straight

暗示[anji] hint
意思表示[ishihyouji] declaration of intention
開示[kaiji] disclosure (legal)
求愛誇示[kyuuaikoji] courtship display
教示[kyouji] instruction

訓示[kunji] instruction
啓示[keiji] revelation (i.e. divine revelation)
掲示[keiji] notice
掲示板[keijiban] bulletin board
誇示[koji] ostentation