embellishment
US /ɪmˈbel.ɪʃ.mənt/
UK /ɪmˈbel.ɪʃ.mənt/

1.
a decorative detail or feature added to something to make it more attractive
:
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The dress had intricate embroidery as an embellishment.
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The architect added some classical embellishments to the modern building.
2.
a detail, especially a fictitious one, added to a statement or story to make it more interesting or dramatic
:
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His story was full of colorful embellishments.
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She added a few embellishments to make the anecdote more amusing.