/ Dictionary / Index B bast: Meaning and Definition of Find definitions for: bast Pronunciation: (bast), [key] — n. phloem. Also calledany of several strong, woody fibers, as flax, hemp, ramie, or jute, obtained from phloem tissue and used in the manufacture of woven goods and cordage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bast (Thesaurus) basswood basta* Related Content Daily Word Quiz: supine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language