Duck down and Kapok

Duck down noun - Down of the duck.

Kapok and duck down are semantically related. In some cases you can use "Kapok" instead a noun "Duck down".

Kapok noun - Massive tropical tree with deep ridges on its massive trunk and bearing large pods of seeds covered with silky floss; source of the silky kapok fiber.

Duck down and kapok are semantically related. You can use "Duck down" instead a noun "Kapok".