Meaning: This sentence describes an activity of going to a park to enjoy the swings.
Choice of Words: Park is a public area with open space, often used for recreation. "Went" is the past tense of the verb "to go", which means to move from one place to another. "Play" means to take part in a game or activity for enjoyment. "Swings" are a type of playground equipment that allows you to swing back and forth.