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

宇宙旅行[uchuuryokou] space travel
軍旅[gunryo] army
股旅[matatabi] wandering life of a gambler
修学旅行[shuugakuryokou] excursion
新婚旅行[shinkonryokou] honeymoon

船旅[funatabi] trip by boat
団体旅行[dantairyokou] group travel
長旅[nagatabi] long trip
無銭旅行[musenryokou] hitchhiking