This question is Inspired by a practice exam question which is provided below. (Please note I'm not asking for answers to the exam question, as I provided my own)
Use the word fast in sentences in the lexical category and function indicated. Each example should be UNAMBIGUOUS. Inflection permitted
A. noun/nominal - my answer: We went on a fast.
B. verb/verb - my answer: He is fasting over the holiday.
C. adjective/adjectival - my answer: My car is faster.
D. adverb/adverbial - my answer: The ball bounced fast.
Is there a category/name/group for words which fit all four of the given lexical categories, as exemplified above? To clarify, I'm asking this question so I can search for words inside the group/category which can be used with this question as it contains words which meet the four required categories, for further studying on my own.