/ Dictionary / Index U underwriter: Meaning and Definition of Find definitions for: un•der•writ•er Pronunciation: (un'dur-rī"tur), [key] — n. a person or company that underwrites policies of insurance or carries on insurance as a business. a person or company that underwrites shares or bonds. a person or organization that finances something; backer: the underwriters of the ballet company. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: underwriter (Thesaurus) underwrite underwritten Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language