The part of a sentence "national custom" is correct and usable in written English.
It refers to a tradition or practice that is specific to a particular country or nation. Example: "In India, Diwali is a national custom that is celebrated with great fervor."
In keeping with national custom — remember Vietnam?
Although protesting is a national custom, so is surviving on little.
He also wore Western clothes (another first) but made a gesture to national custom by donning a traditional Nepali cap.It has been an astonishing transformation.
"To completely replace the VCR, you would need a DVD and a digital video recorder," said Paul Lindstrom, Nielsen's senior vice president for national custom research.
Considered by some Kyrgyz to be a national custom, today bride kidnapping is a crime in Kyrgyzstan that carries up to 10 years' imprisonment.
Jacob didn't know if this was the end (a kind of proud greeting of nuclear winter), a drill, or some national custom.
The post at Islam Qala provides a fifth of national customs revenues.Now traders say that a cloud hangs over Herat.
Wednesday's game promises to be a quintessential culture clash as much about football philosophy as national customs.
There is still much disagreement within the ECB about which national customs it should adopt in, for instance, the conduct of its refinancing tenders.
In practice, importers put the C.E. stamp on products like household appliances or toys that are rarely examined by national customs officials at the port of entry.
"My Past and Thoughts" includes bright vignettes, memorable set pieces, sharply drawn character sketches, observations on national customs, correspondence with friends and mini-treatises on various political thinkers.
