When you come home (back) ... people say 「おかえりなさい」(Okaerinasai).
Okaerinasai (おかえりなさい) is a Japanese greeting on returning home.
帰る(Kaeru) means returning home.
The same "Kaeru" also mean カエル(flog). At 伊勢 (Ise) there are many flog figures near the beach. This is to hope people to come home safely from the fishing.