/ Dictionary / Index S semiweekly: Meaning and Definition of Find definitions for: sem•i•week•ly Pronunciation: (sem"ē-wēk'lē, sem"ī-), [key] — adj., n., pl. adv. -lies, —adj. occurring, done, appearing, or published twice a week: semiweekly visits. —n. a semiweekly publication. —adv. twice a week: He traveled semiweekly to Detroit. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: semiweekly (Thesaurus) semivowel semiyearly Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language