What's the plural form of extended order drill? Here's the word you're looking for.
Answer
The noun extended order drill can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be extended order drill.
However, in more specific contexts, the plural form can also be extended order drills e.g. in reference to various types of extended order drills
or a collection of extended order drills.
