Help students build their English vocabulary with this intermediate vocabulary worksheet featuring definition-based missing-letter activities. Students read each definition and complete the vocabulary word using the letters provided. The worksheet covers useful everyday and academic vocabulary related to topics such as the natural world, pollution, weather, places, insects, and accidents. It is a simple, engaging activity for ESL/EFL students, English learners, and intermediate-level classes. The Intermediate download also includes a complete answer sheet for quick and easy checking.