| quill | (noun) a stiff hollow protective spine on a porcupine or hedgehog | - |
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| (noun) the hollow spine of a feather | Synonyms: calamus, shaft |
| (noun) any of the larger wing or tail feathers of a bird | Synonyms: flight feather, pinion, quill feather |
| (noun) pen made from a bird's feather | Synonyms: quill pen |
| squill | (noun) an Old World plant of the genus Scilla having narrow basal leaves and pink or blue or white racemose flowers | Synonyms: scilla |
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| (noun) having dense spikes of small white flowers and yielding a bulb with medicinal properties | Synonyms: sea onion, sea squill, Urginea maritima |
| (noun) bulb of the sea squill, which is sliced, dried, and used as an expectorant | - |