Mobilize/ˈməʊbəlaɪz/ Definition 1 of 3Pro Tip 1/3Urgency Implication Often suggests quick, decisive action in response to a pressing situation or emergency. The charity moved to mobilize volunteers after the earthquake. Pro Tip 2/3Large Scale Used in contexts involving organization on a big scale, such as military or large groups. The nation's leader mobilized troops along the border. Pro Tip 3/3Preparation Needed Implies a period of preparation before the actual action takes place. Rescue teams were mobilized before the storm hit.