テレビ塔[terebitou] TV tower
バベルの塔[baberunotou] Tower of Babel
監視塔[kanshitou] watchtower
管制塔[kanseitou] control tower
供養塔[kuyoutou] memorial tower

金字塔[kinjitou] pyramid
五輪の塔[gorinnotou] five-story pagoda
広告塔[koukokutou] billboard
象牙の塔[zougenotou] ivory tower
信号塔[shingoutou] signal tower

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