tilting board

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a plaything consisting of a board balanced on a fulcrum;
the board is ridden up and down by children at either end
• Syn:
seesaw, teeter, teeter-totter, teetertotter, teeterboard, dandle board
• Derivationally related forms:
seesaw (for: seesaw)
• Hypernyms:
plaything, toy
• Part Holonyms:
playground