cushioning

Từ điển WordNet v3.1 - WordNet Dictionary

noun

artifact consisting of soft or resilient material used to fill or give shape or protect or add comfort (Freq. 1)
• Syn:
padding
• Derivationally related forms:
cushion, pad (for: padding)
• Hypernyms:
artifact, artefact
• Hyponyms:
cushion, falsie, pad, stuffing
• Substance Meronyms:
cotton, cotton fiber, cotton wool, kapok, silk cotton,
vegetable silk, straw