THE IDIOM COLLECTION LEARN & PRACTISE
Back to square one
Understand the meaning. See it in context. Make it yours.
01 / UNDERSTAND
Meaning in plain English
Having to start a plan or process again because the previous attempt failed.
02 / SEE IT IN CONTEXT
The expression in a sentence
- The venue cancelled our booking, so we were back to square one with the event plans.
03 / CHECK YOUR UNDERSTANDING
Quick idiom quiz
Try the question without looking back, then write a sentence of your own. You can retry as often as you like.
0 of 1 checked correctly
Can you recall the expression?
Complete the example using the expression from this lesson.
The venue cancelled our booking, so we were ________ with the event plans.
Show the answer
Back to square one — Having to start a plan or process again because the previous attempt failed.
Try your own sentence (optional)
Make it yours
Write one sentence using “Back to square one” about your own life.
Check your sentence
Does your sentence match this meaning?
Having to start a plan or process again because the previous attempt failed.
Compare: The venue cancelled our booking, so we were back to square one with the event plans.
Check the spelling and how the expression fits the sentence. Your example can be different.
Self-review only. Your sentence is not automatically marked, saved or submitted.
This quiz is for practice. To save lesson completion on this device, complete the checks in the app.
GO DEEPER
More ways to understand and use it
Jump to a section
When to use it
Use this informal expression when a setback forces you to return to the beginning. It fits discussions about applications, plans, designs or practical problems.
More examples in context
- If this replacement part does not work, we will be back to square one.
- Our only suitable flat was rented to someone else, leaving us back to square one in our search.
Usage note
Say be back to square one or go back to square one. It suggests a substantial loss of progress, rather than a small correction. Compare back to the drawing board, which highlights rethinking a plan.
A short conversation
A: Did you find a room for the workshop?
B: The owner cancelled, so we are back to square one.
A: Let’s ask the community centre next.
One more practice question
Which setback puts a team back to square one?
A. Its only workable plan fails, and it must start planning again.
B. Its approved plan needs one spelling correction.
Check your answer
A. The team has to restart the process. A minor correction does not normally justify the expression.
Related lessons
Meaning and usage checked against Cambridge Dictionary. Explanations, examples and conversation are original.