The question and answers posed in What is the correct way to pluralize an acronym? deals very nicely with acronym (and possibly initialism) usage. What about the case when you are defining the ...
Are companies/groups of people considered plural? What about their initialisms? I'm unsure if I should use have (plural verb) or has (singular) in the following situations: The Federal Bureau ...
In baseball, an RBI is a Run(s) batted in. So it's already "plural". So if I were to say, Paul Konerko had five RBIs. Is that correct, or should I say Paul Konerko had five RBI.