go back a long way

== English == === Verb === go back a long way (third-person singular simple present goes back a long way, present participle going back a long way, simple past went back a long way, past participle gone back a long way) To have known each other for a long time. Synonym: go way back ==== Usage notes ==== Not to be confused with go a long way. ==== Further reading ==== “go back a long way”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present. “go back a long way”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present. “go back a long way”, in Collins English Dictionary, 2011–present. “go back a long way” (US) / “go back a long way” (UK) in Macmillan English Dictionary.