/ Thesaurus / V Synonyms of vegetable silk Find synonyms for: Noun1. kapok, silk cotton, vegetable silk, plant fiber, plant fibreusage: a plant fiber from the kapok tree; used for stuffing and insulationWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: penurious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language