に就て[nitsuite] concerning
に就き[nitsuki] because of
去就[kyoshuu] committing one's self
就いては[tsuiteha] in line with this
就きましては[tsukimashiteha] in line with this

就く[tsuku] to ascend (the throne)
就ける[tsukeru] to install (a king, emperor, etc.)
就学[shuugaku] entering school
就学義務[shuugakugimu] compulsory school attendance
就学児童[shuugakujidou] school child

海峡[kaikyou] channel (e.g. between two land masses)
峡谷[kyoukoku] glen
峡部[kyoubu] isthmus
峡湾[kyouwan] fjord
山峡[sankyou] gorge

台湾海峡[taiwankaikyou] Straits of Taiwan
地峡[chikyou] isthmus
間宮海峡[mamiyakaikyou] strait between Sakhalin and the east coast of Siberia
英仏海峡[eifutsukaikyou] the English Channel
峡間[kyoukan] between the mountains