What word can be used as the most parts of speech?

Noun, Pronoun, Adjective ,Verb, Adverb, Preposition, Conjunction and Interjection. The word color can be used, for example, as color (noun), color (verb), colorful (Adjective), Color! (Interjection) and so on. Does anyone know what word can be used as the most parts of speech? I know you may be tempted to give me the F-Bomb, but this is for a school paper so no slang would be accepted.