The phrase "a common point of reference" is correct and usable in written English.
It can be used when discussing a shared understanding or basis for comparison among individuals or groups.
Example: "In our discussions, we need to establish a common point of reference to ensure everyone is on the same page."
Alternatives: "shared reference point" or "mutual point of reference".
Americans are more polarized than ever, but chains remain a common point of reference.
The International Classification of Functioning, Disability and Health ICFF) provides a common point of reference and a common language in a developing disability discourse.
Breaking out the facts by business line, geography, workforce segment, and so forth provides further insight and a common point of reference for all those involved in setting internal mobility policies.
Focusing on journey as a central theme in their works, both Bearden and Eyüboğlu envisioned a "global odyssey" as a search for a new home that used the legacies of the ancient Greek civilization as a common point of reference.
The media score also provides a common point of reference in collaborative productions as well as the infrastructure for the real-time control of any technologies used during a live performance.
The former C.E.O. of U.S.A. Rugby, Nigel Melville, who stepped down from that position at the end of June, told me that it's not a common point of reference among today's players, something I gathered firsthand at the U.S.A. Sevens rugby tournament, in Las Vegas, this past March.
Ali challenged America to face up to its political hypocrisy and to acknowledge its moral shortcomings as the common point of reference in any serious discussion of war and race on both shores.
His is a landscape in which such common points of reference as train trips and street directions come as alien intrusions into a life given over to mathematical wizardry and a desire to find out who killed the neighbor's dog in the "curious incident" of the title.
