/ Thesaurus / D Synonyms of dag hjalmar agne carl hammarskjold Find synonyms for: Noun1. Hammarskjold, Dag Hammarskjold, Dag Hjalmar Agne Carl Hammarskjoldusage: Swedish diplomat who greatly extended the influence of the United Nations in peacekeeping matters (1905-1961)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language