question tag - definition and synonyms

noun [countable] linguistics 

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singularquestion tag
pluralquestion tags
  1. a short clause that you add to a statement to make it a question or to request agreement, for example ‘You called the builder didn’t you?’, ’He’s a fantastic player, isn’t he?’ and ‘You can’t work it out, can you?’ When the first clause is affirmative, the tag is usually negative, and when the first clause is negative, the tag is usually affirmative.