/ Dictionary / Index D dossier: Meaning and Definition of Find definitions for: dos•si•er Pronunciation: (dos'ē-ā", -ē-ur, dô'sē-ā", -sē-ur Fr. dô-syā'), [key] — pl. dos•si•ers a collection or file of documents on the same subject, esp. a complete file containing detailed information about a person or topic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dossier (Thesaurus) doss house dossil Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language