Tremor/ˈtremər/ Definition 1 of 3Pro Tip 1/2Emotional Indicator Tremor often indicates nervousness or excitement when describing a person's voice. You could hear the tremor of excitement in her voice as she spoke. Pro Tip 2/2Subtle Disturbance 'Tremor' suggests a movement that is barely noticeable, not a strong shake. A tremor passed through the audience at the unexpected news.