Definitions
There is 1 meaning of the phrase
Square One.
Square One - as a noun
The situation in which you begin an endeavor and to which you return if your efforts fail
Example: "The police are now back at square one after having arrested and released 27 men"
Example Sentences
"After the server crash, we had to start from square one and rebuild our entire network."
"Despite years of therapy, he always seemed to end up back at square one."
"I made a mistake in the code and had to go back to square one."
"The team had to go back to square one and come up with a new strategy."
"After the breakup, she felt like she was back at square one in terms of finding love."