Uncertain plural
Technique marking plural ambiguity From Wikipedia, the free encyclopedia
An uncertain plural occurs when a writer does not know in advance whether a word should be written in the singular or plural. For English nouns, this may be demonstrated by enclosing the trailing s in parentheses, such as "book(s)".[1][2]
In the case of articles, "they" or "their" may be used to include a single individual, when uncertain.
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