Ordinance or Ordnance?

What is the difference between ordinance and ordnance?

Ordinance is a noun denoting an authoritative rule or regulation. Ordnance is a mass noun referring to military materiel or artillery.


The noun ordinance is an authoritative order or regulation.



The mass noun ordnance refers to military materiel (e.g., weapons, ammunition, fuel).


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What are nouns? What are mass nouns? The difference between materiel and material List of easily confused words