安全期[anzenki] safe period
暗黒期[ankokuki] eclipse period
一期[ichigo] one's life time
一期[ikki] one term
一期一会[ichigoichie] once-in-a-lifetime encounter (hence should be cherished as such)

一周期[isshuuki] period (in astronomy)
一定期間[itteikikan] fixed interval
延期[enki] postponement
延期になる[enkininaru] to be postponed
沖積期[chuusekiki] alluvial period

此方[kochira] this way (direction close to the speaker or towards the speaker)
此方[konata] this way
此間[konaida] the other day
此の間[konokan] the other day
此の頃[konokoro] recently

此度[konotabi] this occasion
此の辺[konohen] this area
此から[korekara] after this
此れまで[koremade] hitherto
此等[korera] these