/ Dictionary / Index S sillyweed: Meaning and Definition of Find definitions for: sil•ly•weed Pronunciation: (sil'ē wēd"), [key] — n. Slang. marijuana. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. silly-sider silo Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language