Final answer:
When looking for 'boasted' in the dictionary, the guide words at the top of the page would be 'boast' and 'boat', representing the first and last words alphabetically on that page.
Step-by-step explanation:
If you're searching for the entry boasted in the dictionary, the guide words you'd find at the top of the page are the first and last words on that page, indicating the alphabetical range of entries included. The word boasted falls within the alphabetical order, so one possible pair of guide words could be boast and boat, meaning that boasted would appear between these two words. However, the actual guide words can vary depending on the dictionary used and how it is organized.