teeter-totter
noun🔊/ˈtiːtə tɒtə(r)/
🔊/ˈtiːtər tɑːtər/
(North American English) (also see-saw British and North American English)
a piece of equipment for children to play on consisting of a long flat piece of wood that is supported in the middle. A child sits at each end and makes the teeter-totter move up and down.Topics Games and toysc2 Word Originlate 19th cent.: reduplication of teeter or totter.