What is the preposition of hint?

Excuse me, but could you please clarify what you mean by the "preposition of hint"? In linguistics, a preposition is a word or phrase that shows the relationship between other words in a sentence, often indicating direction, time, or place. However, "hint" is typically used as a noun or verb, indicating a suggestion or subtle indication of something. Perhaps you are referring to the phrase or context in which "hint" is used, or perhaps there's a specific usage or grammatical rule you're inquiring about? Could you elaborate on your question to help me provide a more accurate response?