blank verse
US /ˌblæŋk ˈvɜːrs/
UK /ˌblæŋk ˈvɜːrs/

1.
verse without rhyme, especially that which uses iambic pentameter.
:
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Shakespeare often wrote in blank verse.
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The poet experimented with different forms, including blank verse.
verse without rhyme, especially that which uses iambic pentameter.