Kane is the walled remains of a lunar crater that has been flooded by lava from Mare Frigoris to the south, and it lies on the northeast edge of this mare. The crater lies midway. To the north-northeast is the crater Moigno. The floor of this crater is flat and covered in lava flow, with no significant craters within the outer rim. (wikipedia entry)
A crater is a circular depression likely created by an impact event. On the Moon they are named after deceased scientists, polar explorers, astronauts or cosmonauts.