/ Dictionary / Index A abb: Meaning and Definition of Find definitions for: abb Pronunciation: (ab), [key] — n. low-grade wool from the breech or outer edges of a fleece. yarn made from this wool. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: abb (Thesaurus) abaxial abba Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language