What does the Hindi word tum mean in English?

"Tum" in Hindi means "you" (plural or informal singular). It's the informal way to address someone in Hindi.

Here's a breakdown:

* Formal singular: आप (aap)

* Informal singular: तुम (tum)

* Plural: तुम (tum)

It's important to note that using "tum" is considered informal and should be used with people you know well. Using "aap" is more respectful and should be used when speaking to someone you don't know well or someone older than you.