Meanings
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1
noun
a narrow strip of gathered or pleated fabric used as a decorative edge
A white lace frill edged the collar of the dress.
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2
noun
a projecting border of feathers, hair, skin, or bone around an animal's neck or head
The lizard raised its colorful neck frill when threatened.
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3
noun
an unnecessary decorative feature or luxury; often plural
The basic plan provides reliable service without expensive frills.
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4
noun
a bony plate extending behind the skull of a ceratopsian dinosaur
The fossil preserves most of the animal's broad skull frill.
Thesaurus
Etymology
Recorded in sixteenth-century English and probably related to Old French friller 'to shiver or tremble.' The link may be the rippling or trembling movement of a gathered edge, though the word's ultimate origin is uncertain.