X-Country
Cross country is any flight that starts at one airfield and end at another one.
However, for PPL or CPL requirements, a minimum "distance" is specified, i.e. by FAA or CAA.
That distance varies. For FAA (as written above) it is 50 NM.
After receiving a CPL, logging "cross country" is irrelevant.
All that might be needed thereafter is "PIC" or "SIC" time, and time on "type".
That is all I logged for most of my career.
You will never see a "how much cross country time" to apply for a job as 737 F/O with airlines.
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Just a note... these USAF pilots flying, say a B-52 from their US base to worldwide location, in-flight refueling, then returning to their base without landing anywhere, are credited by the FAA for "cross country time" if/when they apply for a CPL issued on the base of their military experience. Same for US Navy pilots on missions from their aircraft carrier.