As an adjective:
* The car was driving backward down the street.
* She wore her shirt backward.
* He was counting backward from ten.
* The project was moving backward due to lack of funding.
As an adverb:
* The dog walked backward into the room.
* He looked backward in time at his childhood.
* She flipped the page backward to reread a paragraph.
* The clock was running backward.
As a noun:
* The backward of the room was dark and cluttered.
* The backward of the book contained an index.
In an idiom:
* He was so nervous he put his shoes on backward.
* The company is moving backward in terms of innovation.
The specific meaning of "backward" depends on the context. You can use it to describe movement, direction, time, or progress.