teeter-totter
intransitive-verb
To move up and down on a teeter-totter.
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I like to teeter-totter.
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The children teeter-totter in the playground every afternoon after school.
To move uncertainly from side to side; wobble.
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He began to teeter-totter.
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The vase began to teeter-totter precariously on the edge of the table, threatening to fall.
To alternate between two opinions or courses of action; vacillate.
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She teeter-totter on her decision.
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The government seemed to teeter-totter between supporting the new policy and maintaining the status quo.