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1. A British imperial capacity unit (liquid or dry) equal to 5 fluid ounces or 142.066 cubic centimetres
    
2. A United States liquid unit equal to 4 fluid ounces
    
3. Any of the radiating leaflike spore-producing structures on the underside of the cap of a mushroom or similar fungus
   - lamella
    
4. Respiratory organ of aquatic animals that breathe oxygen dissolved in water
   - branchia
    
5. [UK, dialect] A ravine or stream
   - ghyll [UK, dialect]

Derived forms: gills

Type of: British capacity unit, Imperial capacity unit, plant organ, respiratory organ, United States liquid unit

Part of: cup, pint

Encyclopedia: Gill, Nakodar