Breadcrumb Home > Dictionary > Index S stiff-arm: Meaning and Definition of Find definitions for: stiff-arm Pronunciation: (stif'ärm"), [key] — v.t., n. straight-arm. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. stiff stiffen TrendingHere are the facts and trivia that people are buzzing about. Biographies: Notable Jewish Religious Leaders Current Events This Week: September 2023 Hispanic Population and the 2010 U.S. Census Preamble of the United Nations Charter The Jewish Calendar ✖ Related Content Daily Word Quiz: qiviut Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language