As a noun:
* "The journalist cited her source as a confidential informant." (refers to a person or thing providing information)
* "The source of the river is high in the mountains." (refers to the origin or beginning of something)
* "The source code for the website is available on GitHub." (refers to the underlying code or text of something)
As a verb:
* "We sourced the ingredients for the dish from local farmers." (refers to the act of obtaining something, especially information or materials)
In a figurative sense:
* "Her inspiration for the painting was sourced from her childhood memories." (refers to where an idea or inspiration originates)
Note: You can also use "source" in combination with other words to create different meanings, such as "source material," "source code," "source document," etc.