Here are the key parts of a dictionary entry structure: 1. The Word - The headword or main entry term. 2. Pronunciation - How to pronounce the word, often shown between slashes. 3. Part of Speech - The grammatical category of the word, such as noun, verb, adjective. 4. Entry Number - If a word has multiple definitions, they are numbered. 5. Definition - The meaning or meanings of the word. Multiple definitions are separated and numbered.