square – n. an open space or central meeting place

tide – n. the regular upward and downward movement of the level of the ocean that is caused by the pull of the Sun and the Moon on the Earth

lagoon – n. an area of sea water that is separated from the ocean by a reef or sandbar

harbor – n. a part of the ocean, a lake, etc., that is next to land and that is protected and deep enough to provide safety for ships

suitcase – n. a large case that you use to carry your clothing and belongings when you are traveling

canal – n. a man-made waterway for boating or transporting water to farmland