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English definition of “seesaw”

seesaw

noun [C] uk   /ˈsiː.sɔː/ us    /-sɑː/ (US also teeter-totter)
a long board that children play on. The board is balanced on a central point so that when a child sits on each end they can make the board go up and down by pushing off the ground with their feet.

seesaw

verb [I] uk   /ˈsiː.sɔː/ us    /-sɑː/
to change repeatedly from one emotion, situation, etc. to another and then back again: His mind seesawed between hope and despair all through those weeks.
seesaw
adjective [before noun] uk   us  
The stock market's recent seesaw movements have made many investors nervous.
(Definition of seesaw from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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