Teeter
01
シーソー, 揺り板
a plaything consisting of a board balanced on a fulcrum; the board is ridden up and down by children at either end
to teeter
01
よろめく, ぐらつく
to stand or move in an unsteady or unstable manner, as if about to lose balance or topple over
例
The toddler began to teeter as he took his first steps.
幼児は最初の一歩を踏み出したとき、よろめき始めました。
The chair teetered for a moment before he fell off.
椅子は彼が落ちる前に一瞬ぐらついた。
