go back

verb

intransitive

1
: to return to a place, activity, or situation
I forgot my phone and had to go back.
I left school but later went back.
Once you do this, there's no going back. [=you cannot undo what has been done]
2
: to have existed for a particular amount of time or since a particular period
traditions that go back to ancient times
3
: to have known each other for a particular amount of time or for a long time
We go back 30 years.
They go way back.
4
: to think or talk about something from the past
To understand, you have to go back to when it started.

see also go back on

Word History

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of go back was in the 15th century

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Cite this Entry

“Go back.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/go%20back. Accessed 15 Dec. 2025.

Last Updated: - Definition revised
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