accuser ac·cu·ser UK/əˈkjuː.zə/ US/əˈkju.zɚ/ rare noun 1. someone who imputes guilt or blame Related words Word family accuse Broader terms disputant WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.