What is the meaning of the word "stream"?

Definitions:

A continuous flow of liquid, air, or gas. NOUN
- Frank blew out a stream of smoke.
A mass of people or things moving continuously in the same direction. NOUN
- There is a steady stream of visitors.
A small, narrow river. NOUN
- We followed the stream through the forest until we reached the lake.
An amount of something or a number of things coming in a continuous flow. NOUN
- A constant stream of enquiries.
Of a liquid, run or flow in a continuous current in a specified direction. VERB
- Tears streamed down their face as they begged for forgiveness.
To transmit or receive data, especially video and audio material, over the internet as a steady, continuous flow. VERB
- We decided to stream the movie instead of downloading it.