What are the differences between Joint and Join as verbs?

You're asking about the difference between the verbs "joint" and "join." There's a bit of a misunderstanding, as "joint" is not a verb in standard English. It's primarily a noun, meaning:

* A connection or juncture: "The joint between the two pieces of wood is weak."

* A place where people gather: "The local pub is a popular joint."

* A marijuana cigarette: (This is a slang term, often used in informal settings.)

"Join," on the other hand, is a verb meaning:

* To become part of a group or organization: "She joined the tennis club."

* To connect or combine with something else: "The two rivers join to form a larger stream."

So, the key difference is that "joint" is not a verb, while "join" is a verb.

If you're ever unsure about the correct usage, always check a dictionary!